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Visualexams GB0-180 Exam Detail

Exam Number/Code : GB0-180

Exam Name : H3C Certified Network Engineer

Questions and Answers : 400

Update Time: 2009-10-30

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Visualexams GB0-283English Exam Detail

Exam Number/Code : GB0-283English

Exam Name : Constructing Enterprise-level Routing Networks

Questions and Answers : 300

Update Time: 2009-10-05

　
　
Exam : HuaWei GB0-283English
Title : Constructing Enterprise-level Routing Networks

1. Which of the following descriptions about QoS at the access, convergence and core layers is/are correct? ( )
A. QoS is implemented identically in the access, convergence and core layers.
B. Packets are classified and marked in the access layer.
C. No QoS mechanism should be configured in the access layer.
D. Usually, the queuing mechanism (such as CBQ) and the congestion avoidance mechanism (such as WRED) should be used in the convergence layer.
Answer: BD

2. Which of the following descriptions about route aggregation in OSPF is/are wrong? ( )
A. The ABR can automatically summarize routes without manual configuration.
B. Aggregation can be made only on the ABR.
C. The router serving as the ABR and the ASBR concurrently cannot summarize routes.
D. The ASBR can summarize all external routes.
Answer: ABCD

3. 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.
A. True
B. False
Answer: A

4. The multicast address used by OSPF is ( ).
A. 224.0.0.5
B. 224.0.0.6
C. 224.0.0.9
D. 224.0.0.10
Answer: AB

5. The ASBR imports four external routes, 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24 and 192.168.0/24. 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? ( )
A. One aggregation route
B. The four original routes
C. One aggregation route and the four original routes
D. None
Answer: B

6. Which of the following descriptions about the IPSec Security Association (SA) is/are correct? ( )
A. The data security service provided by IPSec is realized through SAs.
B. One SA is a unidirectional logical connection between two IPSec peers.
C. The inbound data flow and outbound data flow are respectively processed by the inbound SA and outbound SA.
D. SAs can be set up by the means of manual configuration or automatic negotiation.
Answer: ABCD

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Visualexams GB0-283 Exam Detail

Exam Number/Code : GB0-283

Exam Name : Constructing Enterprise-level Routing Networks

Questions and Answers : 300

Update Time: 2009-10-14

　
　
Exam : HuaWei GB0-283
Title : Constructing Enterprise-level Routing Networks

1. OSPF协议中的一个普通区域通过ASBR注入192.168.0.0/24~192.168.0/24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（ ）
A. 一条聚合路由
B. 四条明细路由
C. 一条聚合路由和四条明细路由
D. 一条都不发布
Answer: B

2. 下列关于QoS在接入，汇聚，核心层的描述正确的是（ ）
A. QoS在接入，汇聚，核心层的实现机制都是相同的。
B. 通常在接入层进行报文的分类和标记。
C. 通常在接入层一般不配置QoS机制。
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）。
Answer: BD

3. OSPF协议使用的组播地址是（ ）
A. 224.0.0.5
B. 224.0.0.6
C. 224.0.0.9
D. 224.0.0.10
Answer: AB

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。
T. True
F. False
Answer: T

5. 关于IPSec安全联盟（Security Association）的说法正确的是（ ）
A. IPSec对数据流提供的安全服务通过安全联盟SA来实现
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
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
D. 安全联盟可通过手工配置和自动协商两种方式建立
Answer: ABCD

6. 关于OSPF协议中的路由聚合，论述错误的有（ ）
A. ABR会自动聚合路由，无需手工配置
B. 只能在ABR上做聚合
C. 一台路由器同时做ABR和ASBR，它就不能聚合路由
D. ASBR上能聚合任意的外部路由
Answer: ABCD

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Visualexams GB0-363English Exam Detail

Exam Number/Code : GB0-363English

Exam Name : Designing Enterprise-level Networks

Questions and Answers : 317

Update Time: 2009-10-05

　
　
Exam : HuaWei GB0-363English
Title : Designing Enterprise-level Networks

1. PIM-SM may not need RP.
A. True
B. False
Answer: B

2. 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.
A. True
B. False
Answer: B

3. 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.
A. True
B. False
Answer: B

4. In a Layer 2 switching network, if only IGMP Snooping is enabled on the switch, what will happen? ( )
A. Multicast fails.
B. Multicast works properly, but IGMP Snooping cannot correctly record the member port information.
C. Multicast works properly, and IGMP Snooping can correctly record the member port information.
D. IGMP Snooping will work properly if IGMP Spoofing is enabled.
Answer: A

5. Which of the following descriptions about dynamic routing protocol is correct? ( )
A. The fundamentals of RIPng are the same as those of RIP, but RIPng speeds up convergence compared with RIP.
B. The packet format of OSPFv3 is the same as that of OSPF, but OSPFv3 can support IPv6.
C. MBGP is the unique EGP routing protocol in the IPv6 network.
D. IS-IS supports multiple protocols so that it can support IPv6 without any modification.
Answer: C

6. The security services in the Open System Interconnection security architecture include ( ) and anti-DoS.
1) Authentication
2) Access control
3) Data privacy service
4) Data integrity service
A. 1) and 2)
B. 1), 2) and 3)
C. 2) and 4)
D. 1), 2), 3) and 4)
Answer: D

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Visualexams H3CTE Exam Detail

Exam Number/Code : H3CTE

Exam Name : H3C Certified Troubleshooting Expert

Questions and Answers : 742

Update Time: 2009-10-11

　
　
Exam : H3C H3CTE
Title : H3C Certified Troubleshooting Expert
一、实验题

1.
要求
1 、总部运行ospf，总部和两个分部之间运行BGP，RT1和RT2运行IBGP使用loopback端口为接口地址。由于分部的的网络比较简单要求分部的路由发布到BGP中。
2、分部B到总部通过ipsec+tunnel的模式。IPsec 采用野蛮模式，只对业务流进行加密。
3、总部的ospf和BGP互相发布后会形成路由环路，RT1 和RT2通过 BGP协议
4、总部和分部A，正常情况下业务通过FR链路到分部A，OA流通过PPP线路到分部A
5、当FR链路不能用的时，业务流通过ppp链路到分部A，此时业务流和OA流都在 PPP链路。要在RT2和RT4上做QOS保证业务流1M 的带宽。通过CBQ,对进来的业务打dscp afc4的标记，在以太网进口上对业务流打标记，在出口上进行带宽保证
6、要求两个分部之间进行隔离，通过AS-path-acl进行网络隔离
7、分部A 通过vrrp实现，当fr链路断掉时候业务流，自动切换到ppp的链路上。总部通过bgp动态路由实现路由切换
8、通过 local-preference和MED两个参数实现业务流走FR，OA 流走PPP
9、RT2和RT4之间的ppp链路采用chap认证
10、总部和分部的bgp要求验证
11、为了保证总部路由不产生环路，要求在RT1＆RT2上通过BGP的preference
进行调整。
答案：
RT1: 1、RT1 与RT3 通过专线连接， 两端设备均为DTE， 无法建立连接，将RT1 设置为DCE 设备，在接口3/0 配置fr interface-type dce 。
2、RT1 加密访问控制列表3001 定义数据流量不准确， 本段业务网段地址为160.0.0.0/24， 分部B 业务网段为160.2.0.0/24，。具体参数如下：acl number 3001 rule 0 permit ip source 160.0.0.0 0.0.255.255 destination 160.2.0.0 0.0.255.255
　　rule 1 deny ip
3、RT1 IKE 采用野蛮方式，数据需要进行双向访问，RT1 没有配置远端接入地址，须配置RT5 的接入端地址作为局段地址
4、RT1 IKE 采用野蛮方式，使用网关名字进行协商，RT1 没有配置本段的网关名字， 需要配置。
ike local-name rt
5、RT1 没有在接口上应用安全策略组，在GRE 通道应用安全策略。interface Tunnel0 ipsec policy rt5
6、RT1 OSPF 进程1 中，区域0 宣告的网段，子网掩码配置不正确，导致无法建立正确的邻居关系。调整10.0.0.0 子网掩码为0.0.255.255
7、RT1 与RT2 之间使用LOOOPBACK 地址接口来建立IBGP 关系，使用LOOPBACK 地址作为接口地址以后存在1.1.1.1 与2.2.2.2 网络层上不通的问题，无法正常的建立邻居关系，可以通过OSPF 将LOOOPBACK 地址宣告出去，保证连通性。RT1： Ospf 1 Area 0 Network 1.1.1.1 0.0.0.0 RT2： Ospf 1 Area 0 Network 2.2.2.2 0.0.0.0
8、RT1 路由器没有配置EBGP 的认证，不能保证连接的安全性，需在TCP 连接时配置MD5 认证，修改如下：
Bgp 65000
peer 10.1.13.2 password simple h3c
peer 10.2.15.2 password simple h3c
路由器RT2 、RT3 、RT4 、RT5 需要做同样的验证配置。
9、策略路由配置错误，R1、R2 的业务网段本地优先级与开销相同，R2OA 网段没有进行流量匹配，不符合业务流通过FR 传输，OA 通过ppp 链路进行传输的要求。修改后策略如下：R1：
route-policy YEWU permit node 10
if-match acl 2001
apply local-preference 200
apply cost 50
route-policy YEWU permit node 20
if-match acl 2002
apply local-preference 100
apply cost 200
R2：
route-policy YEWU-OA permit node 10
if-match acl 2001
apply local-preference 100
apply cost 100
route-policy YEWU-OA permit node 20
if-match acl 2002
apply local-preference 200
apply cost 100
10、RT1 、RT2 的路径访问控制列表配置不正确， 无法实现分部只有总部进行通信的要求，而且路径访问控制列表在BGP 协议中中没有应用。配置如下：
RT1： ip as-path-acl 1 permit ^$
bgp 65000
peer as65002 as-path-acl 1 export
RT2：
ip as-path-acl 1 permit ^$
bgp 65000
peer as65001 as-path-acl 1 export
11、RT5IKE 需要采用野蛮方式， 使用网关名字进行协商，需要配置本端的网关名字。
12、RT5 加密访问控制列表定义数据流量不准确，而且与RT1 不是互为镜像关系，
acl number 3001 rule 0 permit ip source 160.2.0.0 0.0.255.255 destination 160.0.0.0 0.0.255.255 rule 1 deny ip
13、RT5 没有在接口上应用安全策略组，在GRE 通道应用安全策略。interface Tunnel0 ipsec policy rt1
14、RT2 与RT4 进行PPP 连接，配置本地用户名，服务类型为ppp，命令为local-user h3c service-type ppp RT3 上的错误：
1、配置e0/0.11 上的vrrp 优先级为120，vrrp vrid 11 priority 120
Switch2 错误： 1、创建vlan 11 、12
2、将trunk 口改为permit vlan all

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