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H3C GB0-372 Exam Syllabus Topics:

H3CSE-RS-SW Sample Questions:

1. 关于 RSTP 和 STP 的 BPDU 处理方式的对比,说法正确的有

A) RSTP 交换机收到配置 BPDU 后,对优先级向量的计算、比较方法和 STP 相同
B) RSTP 沿袭了 STP 中配置 BPDU 的发送方式,配置 BPDU 仅由根桥周期性发出
C) RSTBPDU 的老化时间由 Max age 减少为 3 个连续的 Hello Time 时长
D) RSTP 中,处于阻塞状态的端口在收到地优先的 BPDU 时,可以立即做出回应

2. 客户要求在网络设计时,关键部位必须有高可靠性设备,且可靠性要达到 99.999% 则设备的运行情况应满足

A) 每年故障时间不超过 3 分钟
B) 每年故障时间不超过 1 分钟
C) 每年故障时间不超过 6 分钟
D) 每年故障时间不超过 9 分钟

3. 二台路由器通过局域网连接在 - 起,组成 VRRP 备份组,各接口上配置如下:
[RTA-GigabitEthernet1/0] display this
Ip address 192.168.0.252 255.255.255.0
Vrrp vrid 1 virtual-ip 192.168.0.254
Vrrp vrid 1 priority 120 shutdown
[RTB-GigabitEthernet1/0] display this
Ip address 192.168.0.253 255.255.255.0
Vrrp vrid 1 virtual-ip 192.168.0.254
从上述信息可以得知

A) 路由器 RTA 处于 VRRP Master 状态,路由器 RTB 处于 VRRP Master 状态
B) 路由器 RTA 处于 VRRP Initialize 状态,路由器 RTB 处于 VRRP Master 状态
C) 路由器 RTA 处于 VRRP Master 状态,路由器 RTB 处于 VRRP Backup 状态
D) 路由器 RTA 处于 VRRP Backup 状态,路由器 RTB 处于 VRRP Master 状态

4. 如图所示 PIM-DM 组网中,路由器 RT1 、 RT2 的部分单播路由表如下 :
<RT1>display ip routing-table Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface 1.1.0.0/16xxxxP1-1 C1-110.1.1.1Port1 1.1.1.0/24xxxxP1-2 C1-210.1.1.1Port1
<RT2>display ip routing-tableRouting Tables: Public
Destination/MaskProtoPreCost NextHop Interface 1.1.1.0/24XXXX P2-1 C2-111.1.1.1Port2 1.1.1.1/32XXXX P2-2 C2-211.1.1.1Port2

那么,当路由器 RT1 、 RT2 进行 Assert 时,获胜的 - 方应该是

A) 如果 P1-1=P2-2 , C1-1=C2-2 ,则 RT1 获胜
B) 如果 P1-1=P2-2 , C1-1<C2-2 ,则 RT1 获胜
C) 如果 P1-2=P2-2 , C1-2<C2-2 ,则 RT2 获胜
D) 如果 P1-2=P2-2 , C1-2=C2-2 ,则 RT2 获胜
E) 如果 P1-1>P2-2 , C1-1<C2-2 ,则 RT1 获胜
F) 如果 P1-2>P2-2 , C1-1<C2-2 ,则 RT2 获胜

5. 在如图所示的交换网络中,交换机 SWA 上设置 VLAN 10 为 Super VLAN , VLAN2 和 VLAN3 为 VLAN 10 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 Ethernet/0/4 为 Trunk 端口, PVID 为 VLAN1 ,允许所有 VLAN 通过,按照如图所示设置好各设备的 IP 地址后,下面说法正确的是

A) PCC 的报文从 SWB 的 Ethernet1/0/4 端口出来,进入 SWA 的 Ethernet1/0/3 端口后所带的 vlan tag 为 VLAN 2
B) PCC 的报文从 SWB 的 Ethernet1/0/4 端口出来,进入 SWA 的 Ethernet1/0/3 端口后所带的 vlan tag 为 VLAN 3
C) PCC 的报文从 SWB 的 Ethernet1/0/4 端口出来,进入 SWA 的 Ethernet1/0/3 端口后所带的 vlan tag 为 VLAN 1
D) PCC 的报文从 SWB 的 Ethernet1/0/4 端口出来,进入 SWA 的 Ethernet1/0/3 端口后所带的 vlan tag 为 VLAN 10

Solutions: