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H3C GB0-371 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| VLAN and Switching Technologies | - VLAN Concepts
|
| Campus Network Security | - Security Overview
|
| IP Multicast | - Multicast VLAN
|
| Campus Network Fundamentals | - Campus Network Architecture
|
| Spanning Tree and Redundancy Protocols | - Spanning Tree Protocols
|
H3C Constructing H3C High-Performance Campus Networks Sample Questions:
Question 1
在如图所示的交换网络中,交换机 SWA 上设置 VLAN10 为 Super VLAN , VLAN2 和 VLAN3 为 VLAN10 的 Sub VLAN ,端口 Ethernet1/0/3 为 Trunk 端口, PVID 为 VLAN1 ,允许所有 VLAN 通过;交换机 SWB 上创建 VLAN2~VLAN20 ,端口 Ethernet1/0/4 为 Trunk 端口, PVID 为 VLAN1 ,允许所有 VLAN 通过 SWA 上査看 Ethernet 1/0/3 端口信息,下面显示正确的为
A. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2-3,10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
B. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
C. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2-3 VLAN permitted: 1 (default vlan), 2-9, 11-4094 Trunk port encapsulation: IEEE 802.1q
D. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2 VLAN permitted: 1 (default vlan), 2-9, 11-4094 Trunk port encapsulation: IEEE 802.1q
Question 2
在如图所示的交换网络中,三台交换机都只有缺省 VLAN1 ,三台交换机的互联端口都为 Trunk ,且允许所有 VLAN 通过,三台交换机都开启了全局和端口的 GVRP 功能在交换机 SWA 上创建了 VLAN10 ,在交换机 SWC 上创建了 VLAN20 ,并且在交换机 SWA 上设置 Ethernet1/0/1 端口的 GVRP 注册模式为 Forbidden ,在 SWC 上执行 display vlanSWC 上存在的 VLAN 有(选择一项或多项)
A. VLAN 10
B. VLAN20
C. VLAN 1
Question 3
关于 MSTP 的 BPDU 格式,说法正确的有
A. 同一条链路在不同的 MSTI 中端口路径开销值可以不同
B. MST 域根 ID 字段长度 4 8 个字节,高位两个字节为桥优 ^ 级,取值范围为 0-61440 步长 4096
C. MSTI 域根 ID 为 MSTI 中优先级最高的桥的 ID
D. MSTI 配置消息中的 Flags 字段的定义和 RST BPDU 中 Flags 字段的定义完全相同
Question 4
运行 PIM-DM 的路由器会周期性发送 Hello 消息,用于发现邻居、建立并维护邻居关系,以下关于 Hello 消息描述正确的有 __
A. 如果 Hello 消息优先级相同,接口 IP 地址较大的路由器将成为 DR
B. 路由器以组播方式发送 PIM Hello ,目的地址为 224.0.0.13
C. 所有 PIM 路由器都是 224.0.0.13 的组播组成员
D. 当路由器运行 IGMPV2 时,通过 PIMHello 消息为共享网段选举 DR ,并由 DR 作为 IGMP 的 Querier
E. 选举 DR 时,拥有较高 Hello 消息优先级的路由器将成为 DR
Question 5
两台路由器 RTA 和 RTB 通过局域网连接在一起,组成 VRRP 备份组,各路由器接口配置如下 :
RTA 的 GigabitEthernet1/0
ip address 192.168.0.252 255.255.255.0
ip address 192.168.1.252 255.255.255.0 sub
vrrp vrid 1 virtual-ip 192.168.0.254
vrrp vrid 1 priority 120
vrrp vrid 2 virtual-ip 192.168.1.254
RTB 的 GigabitEthernet1/0
ip address 192.168.0.253 255.255.255.0
ip address 192.168.1.253 255.255.255.0 sub
vrrp vrid 1 virtual-ip 192.168.0.254
vrrp vrid 2 virtual-ip 192.168.1.254
vrrp vrid 2 priority 120
从上述信息可以 - 知
A. 路由器 A 为备份组 1 的 Master 路由器,路由器 B 为备份组 2 的 Master 路由器
B. 路由器 A 为备份组 1 的 Master 路由器,备份组 2 无 Master 路由器
C. 备份组 1 可以成功建立,备份组 2 无法成功建立
D. 备份组 1 可以成功建立,备份组 2 可以成功建立
Solutions:
| Question 1 Answer: C | Question 2 Answer: B,C | Question 3 Answer: A,C | Question 4 Answer: A,B,C,E | Question 5 Answer: A,D |



