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		<title>H3C GB0-283 braindump</title>
		<link>http://www.ibm-certification-exam.com/h3c-gb0-283-braindump/</link>
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		<pubDate>Thu, 04 Mar 2010 08:03:44 +0000</pubDate>
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		<description><![CDATA[Visualexams guarantee your H3C GB0-283 success with our H3C GB0-283 Exam Resources. Our exams are developed by highly experiences IT Professionals working in todays prospering companies and data centers. All our practice exams including H3C GB0-283 exam guarantee you the exam success you need.

We are all well aware that a major problem in the IT [...]]]></description>
			<content:encoded><![CDATA[<p>Visualexams guarantee your H3C <a href="http://www.visualexams.com/GB0-283.htm"><strong>GB0-283</strong></a> success with our H3C GB0-283 Exam Resources. Our exams are developed by highly experiences IT Professionals working in todays prospering companies and data centers. All our practice exams including H3C GB0-283 exam guarantee you the exam success you need.</p>
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<p>We are all well aware that a major problem in the IT industry is that there is a lack of quality study materials. Our Exam HCSE certification GB0-283 Preparation Material provides you everything you will need to take a certification examination. Details are researched and produced by Certification Experts who are constantly using industry experience to produce precise, logical and verified answers. You may get questions from different web sites or books, but logic is the key.</p>
<p>Therefore to pass an examination you need to have some GB0-283 exam notes, H3C GB0-283 study guides, which will help you, pass your certifications. This kind of help is provided by GB0-283 Visualexams, this site is fully equipped with GB0-283 exam review, GB0-283 practice exam, brain dumps, GB0-283 study guides, GB0-283 exam answers, practice test, H3C GB0-283 braindump exam and many more preparation tools or exam resources making it easier for a candidate to pass his exam.</p>
<p>H3C GB0-283 study guides, which will help you, pass your certifications. This kind of help is provided by GB0-283 Visualexams, this site is fully equipped with GB0-283 torrent, GB0-283 practice papers, brain dumps, GB0-283 study guides, GB0-283 exam answers, practice test, H3C GB0-283 braindump exam and many more preparation tools or exam resources making it easier for a candidate to pass his exam.</p>
<p>The related exams:<br />
<a href="http://www.visualexams.com/GB0-283English.htm"><strong>GB0-283</strong></a> Constructing Enterprise-level Routing Networks<br />
<a href="http://www.visualexams.com/GB0-363English.htm"><strong>GB0-363</strong></a> Designing Enterprise-level Networks<br />
<a href="http://www.visualexams.com/GE0-703.htm"><strong>GE0-703</strong></a> GCP7-System Consultant for Inboud Voice<br />
<a href="http://www.visualexams.com/hh0-110.htm"><strong>hh0-110</strong></a> GCP7- Consultant, Voice Enterprise Edition</p>
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		<title>New GB0-283-LAB exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-283-LAB/</link>
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		<pubDate>Sun, 11 Oct 2009 08:40:28 +0000</pubDate>
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				<category><![CDATA[H3C]]></category>

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				   GB0-283-LAB Exam Description
					Questions and Answers:6 Q&#038;As  
					Updated:  2009-10-11 
					Exam Number/Code: GB0-283-LAB
					Exam Name: Constructing Enterprise-level Routing Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade [...]]]></description>
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				   <strong>GB0-283-LAB Exam Description</span></strong><br />
					Questions and Answers:<strong>6</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-10-11</strong> <br />
					Exam Number/Code: <strong>GB0-283-LAB</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Routing Networks</strong></p>
<p><span id="more-2577"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A>  <a href="http://www.certinside.com/GB0-283-LAB.html" target="_blank">GB0-283-LAB</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
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<p>				<strong>GB0-283-LAB Free Demo Download</strong><br />
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		<title>New GB0-540 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-540/</link>
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		<pubDate>Tue, 04 Aug 2009 10:25:47 +0000</pubDate>
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		<description><![CDATA[
				   GB0-540 Exam Description
					Questions and Answers:177 Q&#038;As  
					Updated:  2009-09-14 
					Exam Number/Code: GB0-540
					Exam Name: Advanced Intrusion Prevention System Configuration

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the [...]]]></description>
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				   <strong>GB0-540 Exam Description</span></strong><br />
					Questions and Answers:<strong>177</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-14</strong> <br />
					Exam Number/Code: <strong>GB0-540</strong><br />
					Exam Name: <strong>Advanced Intrusion Prevention System Configuration</strong></p>
<p><span id="more-1084"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/H3C-Others.html" target="_blank"><strong>Others</strong></a> <a href="http://www.certinside.com/GB0-540.html" target="_blank">GB0-540</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  H3C GB0-540<br />
Title    :  H3C Certified Senior Engineer for Security &#8211; IPS</p>
<p>
1.  使用Web方式登陆TippingPoint，每次最多只能同时登录一个用户。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>2.  攻击者向目标主机发送源地址和目的地址均为该主机地址的TCP SYN报文，并以此来达到攻击目的，这种攻击的名称是（   ）。<br />
A. Smurf<br />
B. Land<br />
C. Fraggle<br />
D. IP Spoofing<br />
Answer: B</p>
<p>3.  Notification Contacts包括的组合有（   ）。<br />
A. SMS + Remote system log + LSM<br />
B. Remote System Log + Management Console<br />
C. Management Console + SMS<br />
D. LSM + Management Console + SMS<br />
Answer: AB</p>
<p>4.  下列选项中，属于DoS攻击的有（   ）。<br />
A. TFN<br />
B. Syn Flood<br />
C. Land<br />
D. ICMP Flood<br />
Answer: ABCD</p>
<p>5.  客户想下载最新的数字疫苗，可以从下列哪个网站获取？<br />
A. www.huawei-3com.com<br />
B. www.3com.com<br />
C. www.huawei.com<br />
D. www.tippingpoint.com<br />
Answer: D</p>
<p>6.  TippingPoint对BT下载进行限流，依靠的是TippingPoint的哪种保护功能？<br />
A. 应用层保护<br />
B. 基础设施保护<br />
C. 性能保护<br />
Answer: C</p>
<p>7.  Smurf攻击为了达到攻击的目的，采用的攻击手段是（    ）。<br />
A. 伪造一个SYN报文，其源地址是伪造的不存在的地址，向受害主机发起连接。<br />
B. 向同一个子网的主机发送ICMP重定向报文，请求主机改变路由。<br />
C. 发送ICMP应答请求报文，该请求的目的地址设置为受害网络的广播地址。<br />
D. 利用那些在TCP/IP堆栈实现中信任IP碎片中的报文头所包含的信息来实现自己的攻击。<br />
Answer: C</p>
<p>8.  网络钓鱼的危害表现在（   ）。<br />
A. 盗取用户的银行卡或者信用卡的帐户的密码，使用户遭受经济上的损失。<br />
B. 产生大量的TCP办连接，使网络资源被大量消耗。<br />
C. 大量占用网络带宽，使其他用户无法正常浏览网页。<br />
D. 传播大量的病毒到网络上，造成其它设备无法正常使用。<br />
Answer: A</p>
<p>9.  在CLI操作中，显示TippingPoint配置的命令是（   ）。<br />
A. show config<br />
B. dis config<br />
C. dis configuration<br />
D. show configurarion<br />
Answer: D</p>
<p>10.  TippingPoint的优势在于（   ）。<br />
A. 对第二层到第七层实行全部的检查<br />
B. 对存在的漏洞提供保护<br />
C. 实现零时差攻击保护<br />
D. 防止应用程序和操作系统损坏或宕机<br />
E. 不必紧急实施为危险漏洞打补丁<br />
Answer: ABCDE</p>
<p>11.  在SMS操作中，当TippingPoint检测到接入客户端的非法活动时，SMS进行基于策略的门限控制，SMS发送Trap到NMS或者根据配置执行相应的动作。<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>12.  TippingPoint设备支持的网管设备只有SMS，其它网管设备不支持。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>13.  TippingPoint支持单设备管理LSM和企业级集中管理SMS两种管理架构。<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>14.  TippingPoint IPS对应用保护的过滤器分为哪几类？<br />
A. Attack Pretection, Reconnaissance, Security Policy, Informational<br />
B. Attack Pretection, Scan, Security Policy, Informational<br />
C. Attack Pretection, Reconnaissance, Misuser&amp;Abuse, Informational<br />
D. Attack Pretectio, Scan, Security Policy, Misuser&amp;Abuse<br />
Answer: A</p>
<p>15.  下面属于泛洪攻击的是（   ）。<br />
A. ICMP-flood<br />
B. UDP-flood<br />
C. TCP-flood<br />
D. SYN-flood<br />
Answer: ABD</p>
</p></div>
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		<title>New GB0-520 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-520/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-520/#comments</comments>
		<pubDate>Tue, 04 Aug 2009 10:24:52 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[H3C]]></category>

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		<description><![CDATA[
				   GB0-520 Exam Description
					Questions and Answers:319 Q&#038;As  
					Updated:  2009-09-17 
					Exam Number/Code: GB0-520
					Exam Name: Building Secure Virtual Private Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-520 Exam Description</span></strong><br />
					Questions and Answers:<strong>319</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-17</strong> <br />
					Exam Number/Code: <strong>GB0-520</strong><br />
					Exam Name: <strong>Building Secure Virtual Private Networks</strong></p>
<p><span id="more-2505"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/H3C-Others.html" target="_blank"><strong>Others</strong></a> <a href="http://www.certinside.com/GB0-520.html" target="_blank">GB0-520</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  H3C GB0-520<br />
Title    :  Building Secure Virtual Private Networks</p>
<p>
1.  DVPN  支持全动态地址，即使两个  Client  的  IP  地址都不是静态的，而是动态分配的，也可以自动建立  DVPN  隧道。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>2.  L2TP  隧道的建立是一个三次握手的过程，而  L2TP  会话的建立是一个四次握手的过程。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>3.  AH  和  ESP  均可以穿越  NAT  。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>4. 下面不属于  SSL  握手消息的是（     ）。<br />
A. ClientHello<br />
B. Alert<br />
C. ChangeCipherSpec<br />
D. ApplicationData<br />
Answer: BCD</p>
<p>5. 若L2TP VPN接入方式形如&quot;移动员工-PSTN-LAC-Internet-LNS-总部内网&quot;，对这种接入方式，正确的说法有（     ）。<br />
A. LAC  设备多由  ISP  提供；  LNS  设备多由总部提供<br />
B. 用户接入的  AAA  服务由  LAC  设备完成<br />
C. 用户的最终授权和验证工作由  LNS  完成<br />
D. L2TP  隧道由  LAC  发起，由  LNS  终结<br />
E. PPP  通道最终建立在移动员工和  LAC  之间<br />
Answer: ABCD</p>
<p>6.  可提供数据加密功能的  IPSec  协议有（     ）。<br />
A. AH<br />
B. ESP<br />
C. IKE<br />
D. ISAKMP<br />
Answer: B</p>
<p>7. 只有将报文加密才能保证不被篡改，除此之外其他办法均无效。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>8.  IPSec  的配置中规定，一个接口上只能应用一个安全策略组，一个安全策略组中可包括多条策略。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>9. 密钥长一倍，安全强度就提高一倍。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>10.  SSL  版本正确的是（     ）。<br />
A. SSL 1.0<br />
B. SSL 2.0<br />
C. SSL 3.0<br />
D. TLS 3.0<br />
Answer: ABC</p>
<p>11. 为保证每个安全联盟所使用的密钥互不相关，每次建立安全联盟都要经过  DH  交换过程。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>12.  PFS  之所以更安全，是因为每次协商出的  SPI  均不相同。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>13.  SecPath系列安全网关支持多种  VPN  业务，其中能提供数据机密性的是（     ）。<br />
A. L2TP VPN<br />
B. IPSec VPN<br />
C. SSL VPN<br />
D. GRE VPN<br />
Answer: BC</p>
<p>14.  SecPath防火墙产品的  HT  加密卡不可以热插拔。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>15.  网络通信对安全性的要求包括（     ）。<br />
A. 一致性<br />
B. 私密性<br />
C. 完整性<br />
D. 身份验证<br />
Answer: BCD</p>
</p></div>
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		<title>New GB0-500 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-500/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-500/#comments</comments>
		<pubDate>Tue, 04 Aug 2009 10:22:32 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[H3C]]></category>

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		<description><![CDATA[
				   GB0-500 Exam Description
					Questions and Answers:224 Q&#038;As  
					Updated:  2009-09-16 
					Exam Number/Code: GB0-500
					Exam Name: Implementing Secure Firewalls

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-500 Exam Description</span></strong><br />
					Questions and Answers:<strong>224</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-16</strong> <br />
					Exam Number/Code: <strong>GB0-500</strong><br />
					Exam Name: <strong>Implementing Secure Firewalls</strong></p>
<p><span id="more-2504"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/H3C-Others.html" target="_blank"><strong>Others</strong></a> <a href="http://www.certinside.com/GB0-500.html" target="_blank">GB0-500</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  H3C GB0-500<br />
Title    :  Implementing Secure Firewalls</p>
<p>
1.  利用HWTACACS协议认证与授权分离的特性，可以使用RADIUS进行认证，而使用HWTACACS进行授权。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>2.  SecPath防火墙的ASPF作为改进的状态检测安全技术，支持以下哪些应用协议检测？<br />
A. PPTP<br />
B. HTTP<br />
C. TFTP<br />
D. FTP<br />
Answer: ABD</p>
<p>3.  IP Spoofing攻击的手段是（   ）。<br />
A. 伪造IP地址<br />
B. 窃取密码<br />
C. 窃听IP通信<br />
D. 攻击IP协议栈<br />
Answer: A</p>
<p>4.  以下关于安全区域描述不正确的是（   ）。<br />
A. 不同安全区域的安全级别可以相同<br />
B. 一个接口可以添加到多个安全区域中<br />
C. 一个安全区域中可以添加无限个接口<br />
D. Inloopback0接口可以添加到任何安全区域中<br />
Answer: ABCD</p>
<p>5.  以下哪些攻击需要配置域统计。<br />
A. ICMP Flood<br />
B. SYN Flood<br />
C. UDP Flood<br />
D. ARP Flood<br />
Answer: ABC</p>
<p>6.  SecPath系列防火墙可以工作在多种模式下, 在（   ）下, 防火墙通过二层对外连接，所有接口无IP地址。<br />
A. 路由模式<br />
B. 透明模式<br />
C. 混合模式<br />
D. 攻击防范模式<br />
Answer: B</p>
<p>7.  下列哪些功能是无法通过Web网管进行配置的？<br />
A. GRE 相关配置<br />
B. L2TP相关配置<br />
C. PPPoE相关配置<br />
D. 网页过滤相关配置<br />
Answer: AC</p>
<p>8.  随着网络技术的普及，网络攻击行为出现得越来越频繁。目前，Internet上常见的安全威胁分为以下几类：非法使用，拒绝服务，信息盗窃，数据篡改等。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>9.  在SYN Flood攻击防范命令中可以设置（   ）。<br />
A. enable<br />
B. ip<br />
C. zone<br />
D. blacklist<br />
E. max-rate<br />
F. tcp-proxy<br />
Answer: ABCEF</p>
<p>10.  SecPath500F防火墙可以实现（   ）个MIM接口扩展。<br />
A. 0<br />
B. 1<br />
C. 2<br />
D. 3<br />
Answer: C</p>
<p>11.  邮件的收件人过滤可配置的收件人地址长度最大值为（   ）。<br />
A. 64<br />
B. 128<br />
C. 256<br />
D. 512<br />
Answer: B</p>
<p>12.  下列哪些属于防火墙的必备技术？<br />
A. 网络隔离及访问控制<br />
B. 攻击防范<br />
C. 地址转换<br />
D. 应用层状态检测<br />
E. 身份认证<br />
F. 内容过滤<br />
G.安全管理<br />
Answer: ABCDEFG</p>
<p>13.  ACL可以应用于整机或指定接口上，过滤数据包。除此之外，ACL还可以用于（   ） 。<br />
A. QoS中，对数据流量进行分类；<br />
B. DCC中，用来规定触发拨号的条件；<br />
C. NAT中；<br />
D. 报文转发，提高转发速度。<br />
Answer: ABC</p>
<p>14.  TACL主要用于匹配一个会话中的所有返回的报文，可以为某一应用返回的报文在防火墙的外部接口上建立一个临时的返回通道。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>15.  防火墙主要关注边界安全，提供防止常见网络层攻击的特性。SecPath防火墙发现下列哪些网络攻击行为后，可能不会丢弃其报文？<br />
A. IP Spoofing<br />
B. WinNuke<br />
C. IP-Sweep<br />
D. TearDorp<br />
Answer: C</p>
</p></div>
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		<title>New GB0-323English exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-323English/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-323English/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:32:21 +0000</pubDate>
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				<category><![CDATA[H3C]]></category>

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		<description><![CDATA[
				   GB0-323English Exam Description
					Questions and Answers:300 Q&#038;As  
					Updated:  2009-08-06 
					Exam Number/Code: GB0-323English
					Exam Name: Constructing Enterprise-level Switching Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-323English Exam Description</span></strong><br />
					Questions and Answers:<strong>300</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-08-06</strong> <br />
					Exam Number/Code: <strong>GB0-323English</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Switching Networks</strong></p>
<p><span id="more-2430"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/HCSE.html" target="_blank"><strong>HCSE</strong></a> <a href="http://www.certinside.com/GB0-323English.html" target="_blank">GB0-323English</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
<p>				<strong>GB0-323English Free Demo Download</strong><br />
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<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-323English<br />
Title    :  Constructing Enterprise-level Switching Networks</p>
<p>
1.  On the H3C switch, VRRP can be used to implement ( ).<br />
A. Gateway backup of the LAN<br />
B. Gateway backup of the WAN<br />
C. Load balance<br />
D. Port monitoring for improving network reliability<br />
Answer: ACD</p>
<p>2.  Which of the following statements is right about 802.1x ports? ( )<br />
A. 802.1x supports the port-based authentication only.<br />
B. The ports of authenticator fall into controlled ports and uncontrolled ports.<br />
C. Uncontrolled ports always forward bi-directionally whether the authentication is passed or not.<br />
D. Controlled ports transmit EAPOL protocol packets only.<br />
Answer: BC</p>
<p>3.  Which of the following methods cannot be used to configure H3C middle-end and low-end switches? ( )<br />
A. Console<br />
B. Xmodem<br />
C. Telnet<br />
D. Dial-up with Modems<br />
Answer: B</p>
<p>4.  Multicast protocols fall into group member management protocols and multicast routing protocols. Which of the following is a group member management protocol? ( )<br />
A. GVRP<br />
B. GMRP<br />
C. IGMP<br />
D. PIM<br />
Answer: C</p>
<p>5.  Which of the following is right about the GARP application? ( )<br />
A. The switches in a network domain automatically share the VLAN information and multicast group configuration information.<br />
B. The whole switching network can be monitored precisely through a switch.<br />
C. The changed VLAN or multicast group configuration will be advertised to the whole switching network dynamically, thus reducing the maintenance cost and improving the reliability.<br />
D. Plug-and-play of VLANs and multicast groups are implemented.<br />
Answer: ABCD</p>
<p>6.  Which of the following is correct about the PIM Hello message? ( ):<br />
A. The Hello message is sent periodically to all PIM routers in multicast group 224.0.0.13 to establish PIM neighbourship.<br />
B. The Hello message is used to select the DR on the multi-access network.<br />
C. As the IGMP message, the Hello message is used to maintain the relationship between interfaces and host members.<br />
D. When IGMP V1 is adopted on the interface, the Hello message is used to select the DR as the IGMP V1 querier.<br />
Answer: ABD</p>
<p>7.  On the H3C S middle-end/low-end switches, STP is enabled by default. ( )<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>8.  In STP, it is suggested to modify the value of Max Age indirectly through setting the network diameter. ( )<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>9.  Which of the following statements is correct? ( )<br />
A. igmp timer query seconds is used to set the interval of the query packet sending on the switch.<br />
B. igmp timer query seconds is used to set the maximum response time in the query packet.<br />
C. igmp max-response-time seconds is used to set the maximum response time in the query packet.<br />
D. igmp timer other-querier-present seconds is used to set the timeout time of the snooping querier on the switch.<br />
Answer: ACD</p>
<p>10.  STP is a routing protocol.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>11.  IGMP is a signaling protocol between hosts and the router, which defines the mechanism to establish and maintain the multicast membership between hosts and the router. ( )<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>12.  802.1D defines the Disabled state of STP. Which of the following is correct about the port in the Disabled state? ( )<br />
A. It does not receive/send any packet.<br />
B. It does not receive/forward data. It receives but does not send BPDUs, and does not learn addresses.<br />
C. It does not receive/forward data. It receives and forwards BPDUs, and does not learn addresses.<br />
D. It does not receive/forward data. It receives and forwards BPDUs. It begins to learn addresses.<br />
E. It receives or forwards data. It receives and forwards BPDUs. It begins to learn addresses.<br />
Answer: A</p>
<p>13.  The length of PAUSE MAC control frame defined in IEEE802.3x is ( ).<br />
A. 16 bytes<br />
B. 32 bytes<br />
C. 64 bytes<br />
D. 96 bytes<br />
Answer: C</p>
<p>14.  The reason why RSTP can implement fast restoration of the network is that ( ).<br />
A. RSTP reduces the delay from the Blocking state to the Forwarding state.<br />
B. The port will enter the Forwarding state immediately if the old Root port turn in the Blocking state and the remote end of the new Root port is in the Forwarding state.<br />
C. A non-edge Designated port needs only one handshake with the downstream bridge to transfer from the Blocking state to the Forwarding state quickly.<br />
D. Soon after the bridge is started, the edge port enters the Forwarding state without delay.<br />
Answer: ABCD</p>
<p>15.  VLAN can be defined based on ( ).<br />
A. IP addresses<br />
B. Network layers<br />
C. MAC addresses<br />
D. Ports<br />
Answer: ACD</p>
</p></div>
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		<title>New GB0-363English exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-363English/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-363English/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:32:21 +0000</pubDate>
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				<category><![CDATA[H3C]]></category>

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		<description><![CDATA[
				   GB0-363English Exam Description
					Questions and Answers:317 Q&#038;As  
					Updated:  2009-08-06 
					Exam Number/Code: GB0-363English
					Exam Name: Designing Enterprise-level Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-363English Exam Description</span></strong><br />
					Questions and Answers:<strong>317</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-08-06</strong> <br />
					Exam Number/Code: <strong>GB0-363English</strong><br />
					Exam Name: <strong>Designing Enterprise-level Networks</strong></p>
<p><span id="more-2431"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/HCSE.html" target="_blank"><strong>HCSE</strong></a> <a href="http://www.certinside.com/GB0-363English.html" target="_blank">GB0-363English</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
<p>				<strong>GB0-363English Free Demo Download</strong><br />
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									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-363English<br />
Title    :  Designing Enterprise-level Networks</p>
<p>
1.  In an MSTP region, all switches must support the MSTP. There is not such a switch that supports RSTP or STP only.<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>2.  The common security equipment includes the Firewall, Intrusion Detection System (IDS) and Intrusion Prevention System (IPS). The IDS serves as the gateway and is deployed on the path of main service traffic, while the Firewall and IPS are deployed on the bypass.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>3.  if the data link layer protocol in the OSPF P2P network is PPP, two OSPF routers whose interface addresses are in different subnets can still establish adjacency and learn the routing information correctly.<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>4.  Which of the following is/are correct about data link layer backup? ( )<br />
A. The PPP MP can provide automatic backup and load balancing among the links in a bundle.<br />
B. The dial-watch continuously sends ICMP packets to detect whether the peer is reachable.<br />
C. IEEE 802.3ad can provide automatic backup and load balancing among the links in a bundle.<br />
D. The RPR uses the probe packet at the data link layer to realize self-healing in case of link failure.<br />
Answer: AD</p>
<p>5.  The security services in the Open System Interconnection security architecture include ( ) and anti-DoS.<br />
1) Authentication<br />
2) Access control<br />
3) Data privacy service<br />
4) Data integrity service<br />
A. 1) and 2)<br />
B. 1), 2) and 3)<br />
C. 2) and 4)<br />
D. 1), 2), 3) and 4)<br />
Answer: D</p>
<p>6.  Which is the encapsulation format used in ADSL dial-up access initiated from PC? ( )<br />
A. IPoA<br />
B. IPoEoA<br />
C. PPPoA<br />
D. PPPoEoA<br />
Answer: D</p>
<p>7.  To transit a SOHO network to IPv6, we should ( ).<br />
A. Choose an appropriate tunnel technology to access the IPv6 Internet according to the access mode provided by the ISP<br />
B. Use the dual-stack technology to enable all the hosts to access IPv6 and IPv4 network concurrently<br />
C. Use 6to4 technology to access the IPv6 Internet if the ISP does not provide any IPv6 access<br />
D. Use the 6PE technology to access the IPv6 Internet if the ISP provides 6PE access<br />
Answer: AC</p>
<p>8.  On the basis of the port-based dynamic NAT, GRE can work properly after NAT traversal.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>9.  PIM-SM may not need RP.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>10.  The superiority of OSPF to RIP includes ( ).<br />
A. Variable long subnet mask<br />
B. Multicasting update<br />
C. Protocol packet authentication<br />
D. No routing loop<br />
E. Fast convergence<br />
Answer: DE</p>
<p>11.  In a Layer 2 switching network, if only IGMP Snooping is enabled on the switch, what will happen? ( )<br />
A. Multicast fails.<br />
B. Multicast works properly, but IGMP Snooping cannot correctly record the member port information.<br />
C. Multicast works properly, and IGMP Snooping can correctly record the member port information.<br />
D. IGMP Snooping will work properly if IGMP Spoofing is enabled.<br />
Answer: A</p>
<p>12.  To prevent route spoofing, it is preferred to set the OSPF enabled interface that is connected to the users intranet to the Silent state and enable MD5 authentication.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>13.  Which of the following descriptions about dynamic routing protocol is correct? ( )<br />
A. The fundamentals of RIPng are the same as those of RIP, but RIPng speeds up convergence compared with RIP.<br />
B. The packet format of OSPFv3 is the same as that of OSPF, but OSPFv3 can support IPv6.<br />
C. MBGP is the unique EGP routing protocol in the IPv6 network.<br />
D. IS-IS supports multiple protocols so that it can support IPv6 without any modification.<br />
Answer: C</p>
<p>14.  Which of the following descriptions about the BGP route aggregation is correct? ( )<br />
A. It advertises the aggregation route only.<br />
B. It cannot aggregate routes and advertises the original routes only.<br />
C. It can advertise the aggregation route and the original routes.<br />
D. The original AS-Path attribute is changed during route aggregation.<br />
Answer: C</p>
<p>15.  Which of the following port states is/are defined in both STP and RSTP? ( )<br />
A. Disabled<br />
B. Blocking<br />
C. Listening<br />
D. Learning<br />
E. Forwarding<br />
Answer: DE</p>
</p></div>
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		<title>New GB0-283English exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-283English/</link>
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		<pubDate>Mon, 03 Aug 2009 11:32:20 +0000</pubDate>
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		<description><![CDATA[
				   GB0-283English Exam Description
					Questions and Answers:300 Q&#038;As  
					Updated:  2009-08-06 
					Exam Number/Code: GB0-283English
					Exam Name: Constructing Enterprise-level Routing Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-283English Exam Description</span></strong><br />
					Questions and Answers:<strong>300</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-08-06</strong> <br />
					Exam Number/Code: <strong>GB0-283English</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Routing Networks</strong></p>
<p><span id="more-2429"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/HCSE.html" target="_blank"><strong>HCSE</strong></a> <a href="http://www.certinside.com/GB0-283English.html" target="_blank">GB0-283English</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
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<p>				<strong>GB0-283English Free Demo Download</strong><br />
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									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-283English<br />
Title    :  Constructing Enterprise-level Routing Networks</p>
<p>
1. 0.0/24, 192.168.1.0/24, 192.168.2.0/24 and 192.168.3.0/24. These routes are aggregated to one route 192.168.0.0/22 by the ABR. Which routes will the ABR redistribute to the other areas? ( )<br />
A. One aggregation route<br />
B. The four original routes<br />
C. One aggregation route and the four original routes<br />
D. None<br />
Answer: B<br />
4. Which of the following descriptions about the IPSec Security Association (SA) is/are correct? ( )<br />
A. The data security service provided by IPSec is realized through SAs.<br />
B. One SA is a unidirectional logical connection between two IPSec peers.<br />
C. The inbound data flow and outbound data flow are respectively processed by the inbound SA and outbound SA.<br />
D. SAs can be set up by the means of manual configuration or automatic negotiation.<br />
Answer: A</p>
<p>2. 45.0.0 0.0.0.255<br />
nssa default-route-advertise<br />
#<br />
area 0.0.0.0<br />
network 4.4.4.4 0.0.0.0<br />
network 10.34.0.0 0.0.0.255<br />
Which of the following descriptions about the above network diagram and configuration is correct? ( )<br />
A. RouterD redistributes a Type 7 LSA for a default route in Area 1. RouterE and RouterF can receive this LSA.<br />
B. RouterD redistributes a Type 5 LSA for a default route in Area 1. RouterE and RouterF can receive this LSA.<br />
C. RouterC can receive a Type 5 LSA for a default route redistributed by RouterD.<br />
D. None of the above<br />
Answer: A<br />
10. Which of the following descriptions about OSPF STUB area is wrong? ( )<br />
A. A backbone area cannot be configured as STUB area and a virtual link cannot pass through a STUB area.<br />
B. It is unnecessary to configure this attribute on all routers in a STUB area.<br />
C. There is no ASBR in a STUB area.<br />
D. After an area is configured as STUB area, the Type 3 LSA of other areas can be propagated in this area.<br />
Answer: B</p>
<p>3.  The multicast address used by OSPF is ( ).<br />
A. 224.0.0.5<br />
B. 224.0.0.6<br />
C. 224.0.0.9<br />
D. 224.0.0.10<br />
Answer: AB</p>
<p>4.  What is the meaning of the BGP command aggregate 10.110.0.0 255.255.0.0 suppress-policy test ? ( )<br />
A. Advertise the aggregation route only<br />
B. Advertise the aggregation route and all the aggregated routes<br />
C. Advertise the aggregation route and some aggregated routes that meet the filtering conditions<br />
D. Advertise the aggregated routes only,<br />
Answer: C</p>
<p>5.  As shown in the figure, Area 1 is an NSSA area and RouterD is the ABR of the area. The configuration on RouterD is as follows:<br />
ospf 1<br />
area 0.0.0.1<br />
network 10.45.0.0 0.0.0.255<br />
nssa default-route-advertise<br />
#<br />
area 0.0.0.0<br />
network 4.4.4.4 0.0.0.0<br />
network 10.34.0.0 0.0.0.255<br />
Which of the following descriptions about the above network diagram and configuration is correct? ( )<br />
A. RouterD redistributes a Type 7 LSA for a default route in Area 1. RouterE and RouterF can receive this LSA.<br />
B. RouterD redistributes a Type 5 LSA for a default route in Area 1. RouterE and RouterF can receive this LSA.<br />
C. RouterC can receive a Type 5 LSA for a default route redistributed by RouterD.<br />
D. None of the above<br />
Answer: A</p>
<p>6.  When a BGP Speaker advertises the imported IGP routes to the IBGP neighbor, the AS-Path value is the local AS number.<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>7.  The BGP mandatory attributes include ( ).<br />
A. Origin<br />
B. AS-Path<br />
C. Next-hop<br />
D. MED<br />
E. Local-preference<br />
F. Community<br />
Answer: ABC</p>
<p>8.  Which of the following descriptions about route aggregation in OSPF is/are wrong? ( )<br />
A. The ABR can automatically summarize routes without manual configuration.<br />
B. Aggregation can be made only on the ABR.<br />
C. The router serving as the ABR and the ASBR concurrently cannot summarize routes.<br />
D. The ASBR can summarize all external routes.<br />
Answer: ABCD</p>
<p>9.  CAR is realized at the IP layer so that it can only limit the traffic of IP packets. Compared with CAR, LR can limit all the traffic passing through the physical interface.<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>10.  Which of the following descriptions about QoS at the access, convergence and core layers is/are correct? ( )<br />
A. QoS is implemented identically in the access, convergence and core layers.<br />
B. Packets are classified and marked in the access layer.<br />
C. No QoS mechanism should be configured in the access layer.<br />
D. Usually, the queuing mechanism (such as CBQ) and the congestion avoidance mechanism (such as WRED) should be used in the convergence layer.<br />
Answer: BD</p>
<p>11. 0.0.5<br />
B. 224.0.0.6<br />
C. 224.0.0.9<br />
D. 224.0.0.10<br />
Answer: AB<br />
2. Which of the following descriptions about route aggregation in OSPF is/are wrong? ( )<br />
A. The ABR can automatically summarize routes without manual configuration.<br />
B. Aggregation can be made only on the ABR.<br />
C. The router serving as the ABR and the ASBR concurrently cannot summarize routes.<br />
D. The ASBR can summarize all external routes.<br />
Answer: ABCD</p>
<p>12.  A BGP router receives a new route from its EBGP peer, which of the following descriptions is correct? ( )<br />
A. The router will immediately send the route to its BGP peers.<br />
B. The router will look up this route in its routing table. If the route is not recorded in the routing table, it will send the route to its BGP peers.<br />
C. The router will check the sent routes information. If it never sends such a route, it will send the route to its BGP peers.<br />
D. The router will check the sent routes information. If it has sent such a route, it will not send the route to its BGP peers.<br />
Answer: C</p>
<p>13.  The ASBR imports four external routes, 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24 and 192.168.3.0/24. These routes are aggregated to one route 192.168.0.0/22 by the ABR. Which routes will the ABR redistribute to the other areas? ( )<br />
A. One aggregation route<br />
B. The four original routes<br />
C. One aggregation route and the four original routes<br />
D. None<br />
Answer: B</p>
<p>14.  Which of the following descriptions about BGP route aggregation is/are correct? ( )<br />
A. Route aggregation is to aggregate routes of all segments into one or more aggregation routes so as to reduce the size of routing table.<br />
B. If the keyword detail-suppressed is added to the BGP summary command, only the aggregation routes are advertised.<br />
C. BGP route aggregation takes effect on the route imported through the network command only.<br />
D. BGP route aggregation takes effect on the route imported through the import command only.<br />
Answer: AB</p>
<p>15.  Which of the following descriptions about queue is correct? ( )<br />
A. WFQ discarding mechanism is Tail Drop on each queue, the same as CQ.<br />
B. WFQ classifies data flow by using ACL.<br />
C. CBWFQ is an improvement of WFQ using the same basic scheduling as WFQ.<br />
D. LLQ will first check the low-latency queue and take packets from the queue. Only when there is no packet in the low-delay queue, it will take the packets from other queues. In addition, it uses other mechanisms to avoid starving to death of the queues.<br />
Answer: D</p>
</p></div>
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		<title>New GB0-190 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-190/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-190/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:32:10 +0000</pubDate>
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		<description><![CDATA[
				   GB0-190 Exam Description
					Questions and Answers:198 Q&#038;As  
					Updated:  2009-08-22 
					Exam Number/Code: GB0-190
					Exam Name: Construction Small-and Medium-Sized Enterprise Network

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the [...]]]></description>
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				   <strong>GB0-190 Exam Description</span></strong><br />
					Questions and Answers:<strong>198</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-08-22</strong> <br />
					Exam Number/Code: <strong>GB0-190</strong><br />
					Exam Name: <strong>Construction Small-and Medium-Sized Enterprise Network</strong></p>
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		<title>New GB0-190Chinese exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-190Chinese/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-190Chinese/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:32:10 +0000</pubDate>
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		<description><![CDATA[
				   GB0-190Chinese Exam Description
					Questions and Answers:446 Q&#038;As  
					Updated:  2009-08-25 
					Exam Number/Code: GB0-190Chinese
					Exam Name: Construction Small-and Medium-Sized Enterprise Network

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-190Chinese Exam Description</span></strong><br />
					Questions and Answers:<strong>446</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-08-25</strong> <br />
					Exam Number/Code: <strong>GB0-190Chinese</strong><br />
					Exam Name: <strong>Construction Small-and Medium-Sized Enterprise Network</strong></p>
<p><span id="more-2414"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/H3C-Others.html" target="_blank"><strong>Others</strong></a> <a href="http://www.certinside.com/GB0-190Chinese.html" target="_blank">GB0-190Chinese</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
<p>				<strong>GB0-190Chinese Free Demo Download</strong><br />
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									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  H3C GB0-190Chinese<br />
Title    :  Construction Small-and Medium-Sized Enterprise Network</p>
<p>
1.  在如图所示的TCP连接的建立过程中，SYN中的Z部分应该填入________。<br />
A. a<br />
B. b<br />
C. a+1<br />
D. b+1<br />
Answer: D</p>
<p>2.  如果以太网交换机中某个运行STP的端口不接收或转发数据，接收并发送BPDU，不进行地址学习，那么该端口应该处于______状态。<br />
A. Blocking<br />
B. Listening<br />
C. Learning<br />
D. Forwarding<br />
E. Waiting<br />
F. Disable<br />
Answer: B</p>
<p>3.  客户的网络连接形如：<br />
HostA&#8212;-GE0/0&#8211;MSR-1&#8211;S1/0&#8212;&#8211;WAN&#8212;&#8211;S1/0&#8211;MSR-2&#8211;GE0/0&#8212;-HostB<br />
两台MSR路由器通过广域网实现互连，目前物理连接已经正常。MSR-1的接口S1/0地址为3.3.3.1/30，MSR-2的接口S1/0地址为3.3.3.2/30，现在在MSR-1上配置了如下三条静态路由：<br />
ip route-static 192.168.1.0 255.255.255.0 3.3.3.2<br />
ip route-static 192.168.2.0 255.255.255.0 3.3.3.2<br />
ip route-static 192.168.0.0 255.255.255.0 3.3.3.2<br />
其中192.168.0.0/22子网是主机HostB所在的局域网段。那么如下描述哪些是正确的？（选择一项或多项）<br />
A. 这三条路由都会被写入MSR-1的路由表<br />
B. 只有第三条路由会被写入MSR-1的路由表<br />
C. 这三条路由可以被一条路由ip route-static 192.168.0.0 255.255.252.0 3.3.3.2代替<br />
D. 只有第一条路由会被写入MSR-1的路由表<br />
Answer: AC</p>
<p>4.  通常情况下，路由器会对长度大于接口MTU的报文分片。为了检测线路MTU，可以带______参数ping目的地址。<br />
A. -a<br />
B. -d<br />
C. -f<br />
D. -c<br />
Answer: C</p>
<p>5.  下列有关光纤的说法中哪些是错误的？<br />
A. 多模光纤可传输不同波长不同入射角度的光<br />
B. 多模光纤的纤芯较细<br />
C. 采用多模光纤时，信号的最大传输距离比单模光纤长<br />
D. 多模光纤的成本比单模光纤低<br />
Answer: BC</p>
<p>6.  TFTP采用的传输层知名端口号为______。<br />
A. 67<br />
B. 68<br />
C. 69<br />
D. 53<br />
Answer: C</p>
<p>7.  用______命令可指定下次启动使用的操作系统软件。<br />
A. startup<br />
B. boot-loader<br />
C. bootfile<br />
D. boot startup<br />
Answer: B</p>
<p>8.  在Windows操作系统中，哪一条命令能够显示ARP表项信息？<br />
A. display arp<br />
B. arp -a<br />
C. arp -d<br />
D. show arp<br />
Answer: B</p>
<p>9.  在如图所示的交换网络中，所有交换机都启用了STP协议。SWA被选为了根桥。根据图中的信息来看，_______端口应该被置为Blocking状态。（选择一项或多项）<br />
A. SWC的P1<br />
B. SWC的P2<br />
C. SWD的P1<br />
D. SWD的P2<br />
E. 信息不足，无法判断<br />
Answer: BD</p>
<p>10.  配置交换机SWA的桥优先级为0的命令为______。<br />
A. [SWA] stp priority 0<br />
B. [SWA-Ethernet1/0/1] stp priority 0<br />
C. [SWA] stp root priority 0<br />
D. [SWA-Ethernet1/0/1] stp root priority 0<br />
Answer: A</p>
<p>11. 77对应的自然分类网段的广播地址为________________。<br />
Answer: 202.135.111.255<br />
4. 在如图所示的TCP连接的建立过程中，SYN中的Z部分应该填入________。<br />
A. a<br />
B. b<br />
C. a+1<br />
D. b+1<br />
Answer: D<br />
5. FTP默认使用的控制协议端口是______。<br />
A. 20<br />
B. 21<br />
C. 23<br />
D. 22<br />
Answer: B</p>
<p>12.  IP地址132.119.100.200的子网掩码是255.255.255.240，哪么它所在子网的广播地址是______。<br />
A. 132.119.100.207<br />
B. 132.119.100.255<br />
C. 132.119.100.193<br />
D. 132.119.100.223<br />
Answer: A</p>
<p>13. 111.77对应的自然分类网段的广播地址为________________。<br />
Answer: 202.135.111.255<br />
4. 在如图所示的TCP连接的建立过程中，SYN中的Z部分应该填入________。<br />
A. a<br />
B. b<br />
C. a+1<br />
D. b+1<br />
Answer: D<br />
5. FTP默认使用的控制协议端口是______。<br />
A. 20<br />
B. 21<br />
C. 23<br />
D. 22<br />
Answer: B</p>
<p>14.  以下工作于OSI参考模型数据链路层的设备是______。 （选择一项或多项）<br />
A. 广域网交换机<br />
B. 路由器<br />
C. 中继器<br />
D. 集线器<br />
Answer: A</p>
<p>15.  IP地址202.135.111.77对应的自然分类网段的广播地址为________________。<br />
Answer: 202.135.111.255</p>
</p></div>
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		<title>New GB0-800 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-800/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-800/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:16:55 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[H3C]]></category>

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		<description><![CDATA[
				   GB0-800 Exam Description
					Questions and Answers:866 Q&#038;As  
					Updated:  2009-09-07 
					Exam Number/Code: GB0-800
					Exam Name: Huawei-3Com Certified internet Expert:Routing and Switching

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-800 Exam Description</span></strong><br />
					Questions and Answers:<strong>866</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-07</strong> <br />
					Exam Number/Code: <strong>GB0-800</strong><br />
					Exam Name: <strong>Huawei-3Com Certified internet Expert:Routing and Switching</strong></p>
<p><span id="more-1078"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/H3C-Others.html" target="_blank"><strong>Others</strong></a> <a href="http://www.certinside.com/GB0-800.html" target="_blank">GB0-800</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
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<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-800<br />
Title    :  Huawei-3Com Certified internet Expert:Routing and Switching</p>
<p>
1.  以太网报头中的以太网帧类型字段为0 x 8035时，表示后面数据的类型可能为：（      ）<br />
A. ARP请求<br />
B. ARP应答<br />
C. RARP请求<br />
D. RARP应答<br />
Answer: CD</p>
<p>2.  扩展后的IS-IS协议使用________传递TE相关属性信息：（      ）<br />
A. Type 21 TLVs<br />
B. Type 22 TLVs<br />
C. Type 23 TLVs<br />
D. Type 24 TLVs<br />
Answer: B</p>
<p>3.  在OSI七层模型中，两台主机之间进行通信时，其中一台主机的会话层通常只和对端的（     ）进行通信。<br />
A. 物理层<br />
B. 网络层<br />
C. 传输层<br />
D. 表示层<br />
E. 会话层<br />
F. 数据链路层<br />
Answer: E</p>
<p>4.  分层PE跨域部署时，假如骨干网划为一个自治系统，城域网划为另外一个自治系统，那么下列说法正确的是：（     ）<br />
A. 骨干网设置SPE，城域网设置UPE<br />
B. UPE将城域网全部路由发送给SPE，SPE只发送VRF默认路由给UPE<br />
C. 城域网只维护内部的VPN SITE和远端相同VPN的所有路由，骨干网维护全局所有VPN SITE的路由<br />
D. 在跨AS方案中，SPE-UPE采用MP-EBGP或者Multi-hopEBGP方式，实现灵活的部署<br />
Answer: ABD</p>
<p>5.  下面关于HVPLS接入方式的说法，正确的是（     ）<br />
A. UPE与NPE之间运行LDP会话时，可以根据LDP会话的活动状态来判断主PW是否失效来设计MTU/UPE与PE/NPE设备之间链路的备份<br />
B. 对于QinQ接入的HVPLS，没有办法判断主、从PW的状态，所以QINQ方式的接入无法实现MTU/UPE与PE/NPE设备之间链路的备份<br />
C. HVPLS可以减少UPE路由器之间的全连接<br />
D. HVPLS可以大大减少网络中被复制的广播报文数目<br />
E. HVPLS接入方式转发到VPN对端的数据包中的私网标签由UPE分配的<br />
Answer: AC</p>
<p>6.  下列关于多链路帧中继说法错误的有（     ）<br />
A. 多链路帧中继（Multilink Frame Relay，简写为MFR）基于帧中继论坛的FRF.16协议<br />
B.多链路帧中继特性提供一种逻辑接口：MFR接口，由多个帧中继物理链路捆绑而成，从而可以在帧中继网络上提供高速率、大带宽的链路<br />
C. 对同一个MFR接口必须捆绑速率一致的物理接口，否则将无法绑定成功<br />
D. 一个MFR接口对应一个捆绑，一个捆绑中可以包含多个捆绑链路，一个捆绑链路对应着一个物理接口或者子接口<br />
Answer: CD</p>
<p>7.  STP发送配置消息的目的地址是（     ）<br />
A. 01-80-C1-00-00-00<br />
B. 01-80-C2-00-00-00<br />
C. 01-80-C3-00-00-00<br />
D. 01-80-C4-00-00-00<br />
Answer: B</p>
<p>8.  下列关于HOPE的说法正确的是（     ）<br />
A. HOPE解决了作为下层PE的BGP连接数量大的问题<br />
B. HOPE解决了作为下层PE的VPN路由数量大的问题<br />
C. SPE可以同时作为UPE<br />
D. HOPE支持嵌套<br />
Answer: ABCD</p>
<p>9.  在L2TP组网中，假设LAC与LNS都已在公共网上，并实现正确连通的情况下，如果Tunnel建立失败，那么可能的原因有（    ）<br />
A. 在LAC端，LNS的地址设置不正确<br />
B. LAC端设置的用户名与密码有误<br />
C. Tunnel验证不通过<br />
D. LNS（通常为路由器）端没有设置可以接收该隧道对端的L2TP组<br />
Answer: ACD</p>
<p>10.  在LACP中，形成一个链路聚合组ID所必须的元素包括：（       ）<br />
A. Actor系统ID<br />
B. Actor操作KEY<br />
C. Actor系统优先级<br />
D. Partner系统ID<br />
E. Partner操作KEY<br />
F. Partner系统优先级<br />
Answer: BDE</p>
<p>11.  关于冲突域和广播域，下列说法正确的有：（     ）<br />
A. Hub的所有端口都属于同一个冲突域<br />
B. 以太网交换机的一个VLAN是一个广播域<br />
C. 以太网交换机上的端口都分别属于不同的冲突域<br />
D. 以太网交换机的上VLAN实际上是一个冲突域<br />
Answer: ABC</p>
<p>12.  以太网帧（数据链路层）最后4byte为数据链路层CRC校验值，当一个数据帧尾没有形成一个完整的Byte时被称为：（     ）<br />
A. 普通CRC校验错误<br />
B. Runt错误<br />
C. Oversize错误<br />
D. Fragment (碎片)<br />
E. alignment错误<br />
F. Jabber<br />
Answer: E</p>
<p>13.  快速以太网技术中包含了众多成员，下列关于这些成员的描述正确的有（     ）<br />
A. 100Base-TX采用五类双绞线传输数据，最大距离可以达到100米<br />
B. 100Base-T4采用三类双绞线传输数据，但是传输距离小于100米<br />
C. 100Base-T4与100Base-TX不同的是，100Base-T4需要4对双绞线进行数据传输，而100Base-TX只需要2对<br />
D. 100Base-T2同100Base-TX一样也只需要2对双绞线传输数据，但它采用了不同于其它快速以太网的编码方式<br />
E. 100Base-F采用的是光纤传输介质，目前传输距离可以达到100千米<br />
Answer: ACDE</p>
<p>14.  FTP的常用端口号为：  （     ）<br />
A. 20，21<br />
B. 21，22<br />
C. 20，22<br />
D. 21，23<br />
Answer: A</p>
<p>15.  在标签转发过程中，MPLS报文头中的TTL减一，IP报文头中的TTL同时也会减一。<br />
T. True<br />
F. False<br />
Answer: F</p>
</p></div>
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		<title>New GB0-323 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-323/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-323/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:16:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[H3C]]></category>

		<guid isPermaLink="false"></guid>
		<description><![CDATA[
				   GB0-323 Exam Description
					Questions and Answers:300 Q&#038;As  
					Updated:  2009-09-26 
					Exam Number/Code: GB0-323
					Exam Name: Constructing Enterprise-level Switching Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-323 Exam Description</span></strong><br />
					Questions and Answers:<strong>300</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-26</strong> <br />
					Exam Number/Code: <strong>GB0-323</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Switching Networks</strong></p>
<p><span id="more-1076"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/HCSE.html" target="_blank"><strong>HCSE</strong></a> <a href="http://www.certinside.com/GB0-323.html" target="_blank">GB0-323</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
<p>				<strong>GB0-323 Free Demo Download</strong><br />
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									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-323<br />
Title    :  Constructing Enterprise-level Switching Networks</p>
<p>
1.  组播协议分为组成员管理协议和组播路由协议，下列协议属于组成员管理协议的是（   ）<br />
A. GVRP<br />
B. GMRP<br />
C. IGMP<br />
D. PIM<br />
Answer: C</p>
<p>2.  下面关于配置IGMP时间参数配置命令的解释正确的有（   ）<br />
A.  igmp timer query seconds命令用于设置交换机发送查询报文的时间间隔；<br />
B. igmp timer query seconds命令用于设置交换机发送查询报文中的最大响应时间；<br />
C. igmp max-response-time seconds命令用于设置交换机发送查询报文中的最大响应时间；<br />
D. igmp timer other-querier-present seconds命令用于设置交换机监听查询器存在的超时时间。<br />
Answer: ACD</p>
<p>3.  IEEE802.3x规定的 PAUSE MAC控制帧的长度为（   ）<br />
A. 16 字节<br />
B. 32 字节<br />
C. 64 字节<br />
D. 96 字节<br />
Answer: C</p>
<p>4.  以下哪种配置方法不能配置Quidway系列中低端交换机（   ）<br />
A. 通过console方式<br />
B. 通过Xmodem方式<br />
C. 通过telnet方式<br />
D. 通过modem拨号方式<br />
Answer: B</p>
<p>5.  在STP中，Max Age的值一般推荐通过配置网络直径来间接改变这个参数。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>6.  PIM Hello消息的主要作用包括（   ）<br />
A. 周期性地向所有PIM路由器224.0.0.13发送Hello消息建立PIM邻居关系<br />
B. 在多路访问网络上通过Hello消息来选择指定路由器（DR）<br />
C. 同IGMP消息一样，维护接口与主机成员之间的关系<br />
D. 当IGMP V1 用于接口时，选择DR(IP 地址最高者)同时作为IGMP V1查询器<br />
Answer: ABD</p>
<p>7.  VLAN可以基于以下哪种方式划分（   ）<br />
A. 基于IP地址划分<br />
B. 基于网络层次划分<br />
C. 基于MAC地址划分<br />
D. 基于端口划分<br />
Answer: ACD</p>
<p>8.  关于GARP应用的描述正确的有（   ）<br />
A. 网络域中的Switch自动共享VLAN和组播组配置信息；<br />
B. 能够通过一台Switch对整个交换网络精确监控；<br />
C. 添加的VLAN或组播配置信息会动态地向整个交换网络通告，降低了维护费用且提高了可靠性；<br />
D. 实现了VLAN和组播组的即插即用。<br />
Answer: ABCD</p>
<p>9.  在Quidway系列交换机上开启VRRP可以实现（   ）<br />
A. 局域网内的网关备份<br />
B. 广域网内的网关备份<br />
C. 负载分担<br />
D. 监控端口，提高网络可靠性<br />
Answer: ACD</p>
<p>10.  因特网组管理协议（IGMP）是主机与路由器之间的信令协议，它定义了主机与路由器之间组播成员关系的建立和维护机制，是整个IP组播的基础。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>11.  802.1D中规定了Disabled端口状态，此状态的端口具有的功能是（   ）<br />
A. 不收发任何报文<br />
B. 不接收或转发数据，接收但不发送BPDU，不进行地址学习<br />
C. 不接收或转发数据，接收并发送BPDU，不进行地址学习<br />
D. 不接收或转发数据，接收并发送BPDU，开始地址学习<br />
E. 接收或转发数据，接收并发送BPDU，开始地址学习<br />
Answer: A</p>
<p>12.  关于802.1x端口的有关描述中，正确的是（   ）<br />
A. 802.1x认证仅能基于物理端口方式<br />
B. 所有接入控制单元端口均分为受控端口与非受控端口<br />
C. 非受控端口无论认证通过与否，始终双向连通<br />
D. 受控端口只允许传输EAPOL协议报文<br />
Answer: BC</p>
<p>13.  STP是一种路由协议。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>14.  RSTP之所以能实现网络的快速恢复，在于（   ）<br />
A. RSTP减少了端口从阻塞到转发的时延<br />
B. RSTP中，如果旧根端口进入阻塞状态，且新根端口对端处于转发状态，则立刻进入转发状态<br />
C. 一个非边缘指定端口只需同下游进行一次握手即可快速从阻塞转入转发状态<br />
D. 网桥启动后边缘端口无延时的快速进入转发状态<br />
Answer: ABCD</p>
<p>15.  在Quidway S系列中低端交换机上，生成树功能缺省是打开的。<br />
T. True<br />
F. False<br />
Answer: F</p>
</p></div>
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		<title>New GB0-363 exam on Certinside</title>
		<link>http://www.ibm-certification-exam.com/GB0-363/</link>
		<comments>http://www.ibm-certification-exam.com/GB0-363/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 11:16:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[H3C]]></category>

		<guid isPermaLink="false"></guid>
		<description><![CDATA[
				   GB0-363 Exam Description
					Questions and Answers:317 Q&#038;As  
					Updated:  2009-09-04 
					Exam Number/Code: GB0-363
					Exam Name: Designing Enterprise-level Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As [...]]]></description>
			<content:encoded><![CDATA[<div  class="left">
				   <strong>GB0-363 Exam Description</span></strong><br />
					Questions and Answers:<strong>317</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-04</strong> <br />
					Exam Number/Code: <strong>GB0-363</strong><br />
					Exam Name: <strong>Designing Enterprise-level Networks</strong></p>
<p><span id="more-1077"></span></p>
<p>					<a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade Q&#038;As service for free. If in this period, the certified test center change the <a href="http://www.certinside.com/H3C.html" target="_blank"><strong>H3C</strong></A> <a href="http://www.certinside.com/HCSE.html" target="_blank"><strong>HCSE</strong></a> <a href="http://www.certinside.com/GB0-363.html" target="_blank">GB0-363</a> Q&#038;As, we will update the Q&#038;A in the first time, and provide you the download update for free</div>
<div class="exam_info">
<p>				<strong>GB0-363 Free Demo Download</strong><br />
					<P><a href="http://www.certinside.com/" target="_blank"><strong>Certinside</strong></a> offers free demo for <a href="http://www.certinside.com/GB0-363.html" target="_blank">GB0-363</a> 317 Q &#038; As with Expert Explanations). You can check out the interface, question quality and usability of our practice exams before you decide to buy it. <BR><BR><br />
					<a href="http://pdfdemo.certinside.com/GB0-363.pdf" style="font-size:14px;color:#f30" target="_blank">Download GB0-363 Exam Pdf Demo</a><BR><br />
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									  </P></p>
<p>
				　<br />
　<br />
Exam	  :  H3C GB0-363<br />
Title    :  Designing Enterprise-level Networks</p>
<p>
1.  在一个多生成树域内，不可能存在只支持RSTP或STP的交换机，所有交换机都要支持MSTP。<br />
A. True<br />
B. False<br />
Answer: A</p>
<p>2.  开放系统互连安全体系结构中的安全服务有（   ）和防否认服务。<br />
1)验证；<br />
2)访问控制；<br />
3)数据保密服务；<br />
4)数据完整性服务；<br />
A. 1)和2)<br />
B. 1)、2)和3)<br />
C. 2) 和 4)<br />
D. 1)、2)、3)、4)<br />
Answer: D</p>
<p>3.  PIM-SM中可以没有RP。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>4.  通常从PC发起ADSL拨号上网使用哪一种封装格式（   ）<br />
A. IPoA<br />
B. IPoEoA<br />
C. PPPoA<br />
D. PPPoEoA<br />
Answer: D</p>
<p>5.  在规划小型办公或家用网络过渡到IPv6时，应该（   ）<br />
A. 根据ISP提供的接入方式, 选择合适的隧道技术接入IPv6 Internet<br />
B. 先使用双栈技术，使所有主机能够同时访问IPv6与IPv4<br />
C. 如果ISP不提供任何IPv6接入, 使用6to4连接至IPv6 Internet<br />
D. 如果ISP提供6PE接入，使用6PE技术连接至IPv6 Internet<br />
Answer: AC</p>
<p>6.  网络中常见的安全设备包括防火墙Firewall；入侵检测系统（IDS：Intrusion Detection  System）；深度抵御防火墙IPS等。其中IDS通常作为网关设备部署，处于主要业务流量的路径之上。而Firewall和IPS则通常作为旁路设备部署。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>7.  以下关于BGP路由聚合功能说法正确的是（   ）<br />
A. 只能通告聚合路由<br />
B. 不能聚合，只能通告明细路由<br />
C. 可以同时通告聚合路由和明细路由<br />
D. 聚合后一定会改变原有的AS-Path属性<br />
Answer: C</p>
<p>8.  STP和RSTP对端口状态定义相同的是（   ）<br />
A. disabled<br />
B. blocking<br />
C. listening<br />
D. learning<br />
E. forwarding<br />
Answer: DE</p>
<p>9.  以下选项中哪些为常见的针对链路层的备份方式（   ）<br />
A. PPP协议中的MP可以自动做到捆绑的N条链路之间的自动备份，流量的自动分配，故障时的自动切换。<br />
B. dial-watch依靠持续ping包侦测对端可达。<br />
C. 以太网的聚合技术&#8211;802.3ad，可以自动做到捆绑的N条链路之间的自动备份，流量的自动分配，故障时的自动切换。<br />
D. RPR通过链路层探测报文实现链路故障自愈。<br />
Answer: AD</p>
<p>10.  关于动态路由协议的描述，下列哪些是正确的（   ）<br />
A. RIPng的原理与RIP一样，但改进了RIP收敛速度慢的缺点<br />
B. OSPFv3协议的报文格式与OSPF报文一样，但做了改进以能够支持IPv6<br />
C. MBGP是IPv6网络中唯一的EGP路由协议<br />
D. 因为IS-IS原本就支持多协议，所以不用做任何改动就可以支持IPv6<br />
Answer: C</p>
<p>11.  OSPF路由协议比RIP路由协议的优势表现在（   ）<br />
A. 支持可变长子网掩码<br />
B. 路由协议使用组播技术<br />
C. 支持协议报文验证<br />
D. 没有路由环<br />
E. 收敛速度快<br />
Answer: DE</p>
<p>12.  在一个只有二层交换机构成的局域网中，如果在交换机上只启用IGMP Snooping，那么（   ）<br />
A. 组播不通<br />
B. 组播正常，但IGMP Snooping无法正确记录成员端口信息<br />
C. 组播正常，IGMP Snooping也可以正确记录组播成员端口信息<br />
D. 如果同时启用IGMP Spoofing，可以使IGMP Snooping正常工作<br />
Answer: A</p>
<p>13.  在基于端口的动态NAT下，GRE可以穿越NAT正常工作。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>14.  路由欺骗防止：推荐在同用户内网相连运行OSPF协议的接口指定为Silent状态，并配置MD5验证。<br />
A. True<br />
B. False<br />
Answer: B</p>
<p>15.  在OSPF P2P网络类型的前提下，如果链路协议封装类型为PPP，则即使两端OSPF路由器接口地址不在相同网段，仍然能够形成邻居并正确路由。<br />
A. True<br />
B. False<br />
Answer: A</p>
</p></div>
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				   GB0-280 Exam Description
					Questions and Answers:400 Q&#038;As  
					Updated:  2009-09-18 
					Exam Number/Code: GB0-280
					Exam Name: Constructing Enterprise-level Routing Networks

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				   <strong>GB0-280 Exam Description</span></strong><br />
					Questions and Answers:<strong>400</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-18</strong> <br />
					Exam Number/Code: <strong>GB0-280</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Routing Networks</strong></p>
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		<title>New GB0-283 exam on Certinside</title>
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				   GB0-283 Exam Description
					Questions and Answers:300 Q&#038;As  
					Updated:  2009-09-15 
					Exam Number/Code: GB0-283
					Exam Name: Constructing Enterprise-level Routing Networks

					Certinside professional IT Q&#038;A vendors, we provide well after-sale service. To all the customers buy the Q&#038;As, we provide track service. when you buy the Q&#038;As with in 3 months. you can enjoy the upgrade [...]]]></description>
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				   <strong>GB0-283 Exam Description</span></strong><br />
					Questions and Answers:<strong>300</strong> Q&#038;As <br /> <br />
					Updated:  <strong>2009-09-15</strong> <br />
					Exam Number/Code: <strong>GB0-283</strong><br />
					Exam Name: <strong>Constructing Enterprise-level Routing Networks</strong></p>
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<p>
				　<br />
　<br />
Exam	  :  HuaWei GB0-283<br />
Title    :  Constructing Enterprise-level Routing Networks</p>
<p>
1.  关于OSPF协议中的路由聚合，论述错误的有（    ）<br />
A. ABR会自动聚合路由，无需手工配置<br />
B. 只能在ABR上做聚合<br />
C. 一台路由器同时做ABR和ASBR，它就不能聚合路由<br />
D. ASBR上能聚合任意的外部路由<br />
Answer: ABCD</p>
<p>2.  当BGP路由器从EBGP邻居收到一条新路由时，下列说法正确的是（    ）<br />
A. 立即发送给BGP邻居<br />
B. 查看路由表中有无该路由的记录，如果没有，则向BGP邻居发送该路由<br />
C. 与保存的已发送的路由信息比较，如果未发送过，则向BGP邻居发送<br />
D. 与保存的已发送的路由信息比较，如果已发送过，则不发送<br />
Answer: C</p>
<p>3.  BGP Speaker在向IBGP邻居通告引入的IGP路由时，AS-Path属性的值为本地自治系统号。<br />
T. True<br />
F. False<br />
Answer: F</p>
<p>4.  CAR在IP层实现，因而只能对到达IP层的报文进行限速；相比CAR来说，LR能够限制在物理接口上通过的所有的报文。<br />
T. True<br />
F. False<br />
Answer: T</p>
<p>5.  BGP的必遵属性有（    ）<br />
A. Origin属性<br />
B. AS-Path属性<br />
C. Next-hop属性<br />
D. MED属性<br />
E. Local-preference属性<br />
F. Community属性<br />
Answer: ABC</p>
<p>6. 0.0.5<br />
B. 224.0.0.6<br />
C. 224.0.0.9<br />
D. 224.0.0.10<br />
Answer: AB<br />
2. 关于OSPF协议中的路由聚合，论述错误的有（    ）<br />
A. ABR会自动聚合路由，无需手工配置<br />
B. 只能在ABR上做聚合<br />
C. 一台路由器同时做ABR和ASBR，它就不能聚合路由<br />
D. ASBR上能聚合任意的外部路由<br />
Answer: ABCD</p>
<p>7.  在BGP路由协议中，命令aggregate 10.110.0.0 255.255.0.0 suppress-policy test 的含义是（    ）<br />
A. 当通告路由时只通告聚合路由<br />
B. 当通告路由时通告聚合路由和全部的参与聚合的具体路由<br />
C. 当通告路由时通告聚合路由和部分符合过滤条件的参与聚合的具体路由<br />
D. 只通告具体路由，不通告聚合路由<br />
Answer: C</p>
<p>8. 45.0.0 0.0.0.255<br />
nssa default-route-advertise<br />
#<br />
area 0.0.0.0<br />
network 4.4.4.4 0.0.0.0<br />
network 10.34.0.0 0.0.0.255<br />
关于以上组网、配置，下列说法正确的是（    ）<br />
A. RouterD在area1中发布一条7类缺省LSA，RouterE、RouterF都能收到这条LSA。<br />
B. RouterD在area1中发布一条5类缺省LSA，RouterE、RouterF都能收到这条LSA。<br />
C. RouterC能收到RouterD发布的5类缺省LSA。<br />
D. 以上说法均不正确。<br />
Answer: A<br />
9. 相对于IPv4，IPv6地址有了很大的扩展，达到了（    ）<br />
A. 128位<br />
B. 164位<br />
C. 64位<br />
D. 256位<br />
Answer: A<br />
10. 关于配置OSPF协议中的stub区域，下列说法错误的是（    ）<br />
A. 骨干区域不能配置成stub区域，虚连接不能穿过stub区域。<br />
B. 区域内的所有路由器不是必须配置该属性<br />
C. stub区域中不能存在ASBR。<br />
D. 一个区域配置成stub区域后，其他区域的type3 LSA可以在该区域中传播。<br />
Answer: B</p>
<p>9.  下列关于QoS在接入，汇聚，核心层的描述正确的是（    ）<br />
A. QoS在接入，汇聚，核心层的实现机制都是相同的。<br />
B. 通常在接入层进行报文的分类和标记。<br />
C. 通常在接入层一般不配置QoS机制。<br />
D. 通常在汇聚层一般配置适当的队列机制（如CBQ）和拥塞避免机制（如WRED）。<br />
Answer: BD</p>
<p>10.  下列关于队列调度的几种说法中，正确的是（    ）<br />
A. WFQ在每个队列上和CQ的丢弃机制一样，都是采用Tail Drop；<br />
B. WFQ对流的分类可以通过ACL来实现；<br />
C. CBWFQ是对WFQ的一种改进，和WFQ的基本调度方式一样；<br />
D. LLQ在调度时首先检查低时延队列，从该队列取报文，如果该队列没有报文时才转向其它非低时延队列；但又采用了其他机制，防止有队列饿死。<br />
Answer: D</p>
<p>11.  OSPF协议使用的组播地址是（    ）<br />
A. 224.0.0.5<br />
B. 224.0.0.6<br />
C. 224.0.0.9<br />
D. 224.0.0.10<br />
Answer: AB</p>
<p>12.  关于BGP路由聚合，下列说法正确的是（    ）<br />
A. 路由聚合就是把各段路由综合到一个或多个聚合路由或CIDR块中，以便减小路由表的大小<br />
B. 在BGP聚合命令中如果加入关键字detail-suppressed，则只通告聚合后的路由<br />
C. BGP的路由聚合只对通过network命令引入到BGP中的路由有效<br />
D. BGP的路由聚合只对通过import命令引入到BGP中的路由有效<br />
Answer: AB</p>
<p>13.  相对于IPv4，IPv6地址有了很大的扩展，达到了（    ）<br />
A. 128位<br />
B. 164位<br />
C. 64位<br />
D. 256位<br />
Answer: A</p>
<p>14. 0.0/24~192.168.3.0/24共4条路由，在ABR中配置聚合为一条聚合路由192.168.0.0/22，此时ABR会向其他区域发布哪几条路由（    ）<br />
A. 一条聚合路由<br />
B. 四条明细路由<br />
C. 一条聚合路由和四条明细路由<br />
D. 一条都不发布<br />
Answer: B<br />
4. 关于IPSec安全联盟（Security Association）的说法正确的是（    ）<br />
A. IPSec对数据流提供的安全服务通过安全联盟SA来实现<br />
B. 一个安全联盟SA就是两个IPSec系统之间的一个单向逻辑连接<br />
C. 输入数据流和输出数据流由输入安全联盟与输出安全联盟分别处理<br />
D. 安全联盟可通过手工配置和自动协商两种方式建立<br />
Answer: A</p>
<p>15.  OSPF协议中的一个普通区域通过ASBR注入192.168.0.0/24~192.168.3.0/24共4条路由，在ABR中配置聚合为一条聚合路由192.168.0.0/22，此时ABR会向其他区域发布哪几条路由（    ）<br />
A. 一条聚合路由<br />
B. 四条明细路由<br />
C. 一条聚合路由和四条明细路由<br />
D. 一条都不发布<br />
Answer: B</p>
</p></div>
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