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H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. Regarding the comparison of unicast, multicast and broadcast, there are correct

A) Compared with unicast, multicast can reduce link load
B) Compared with unicast, multicast can reduce the burden of the source
C) Compared with broadcast, multicast can improve link utilization
D) Compared with broadcast, multicast can reduce the burden of the source

2. There are multiple IGMPv2 group member hosts (Client1/Client2/Client3) in the shared network segment, and multiple IGMPv2 routers (Router1/Router2), as shown in the following figure:
192.168.207.254 192.168.207.253
Router1 Router2
+++++
Clientl Client2 Client3
192.168.207.1 192.168.207.2192.168.207.3
So, the following statement is correct

A) Only Router2 periodically sends general group queries to the shared network segment
B) Routerl and Router2 periodically send general group queries to the shared network segment
C) After the host receives the general group query message, Client1, Client2, and Client3 may all send Report messages
D) After the host receives the query message, only Clients send the Report message
E) After the host receives the general group query message, after the first host sends the Report message, the other hosts' Report messages are suppressed
F) Only Router1 periodically sends general group queries to the shared network segment

3. As shown in the networking, SWA and SWB enable STP, SWC does not enable STP when initially Link 2 is not connected, PCB can send data to PCA, if Link 1 fails at this time, the maintenance personnel will connect Link 2, then The statement about the recovery process from PCB to PCA data transfer industry is correct (assuming PCA will not actively send data) __

A) When the SWB port E0/1 enters the Forwarding state, the topology change processing process will be triggered, so the final restoration of the service requires the default 30+15=45 seconds
B) As SWB port E0/1 needs 30 seconds to enter the forwarding state by default, the service needs 30 seconds to recover by default
C) Because the SWA link interruption will cause the topology change processing process, which shortens the MAC address aging time of SWA and SWB, it takes 15 seconds by default for service recovery
D) Service recovery needs to wait for the SWC MAC address to age, so the default time of 300 seconds is required

4. In the network as shown in the figure, the switch SWA is a Layer 2 switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0
[RTA-Ethernet0/0]ip address 10.10.10.1 255.255.255.0
[RTA-Ethernet0/0]interface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the corresponding configuration on the switch SWA, PCA, PCB and PCC can ping their own gateway. The configuration of the switch SWA port Ethernet1/0/4 should be (choose one or more)

A) interface Ethernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 10
B) interfaceEthernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all
C) interface Ethernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 3
D) interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 2

5. The customer purchases a router equipment. If the performance index of the router is MTBFW5000 and MTTRSOQ 5, the reliability of the router is

A) 99.9999%
B) 99.9%
C) 99.999%
D) 99.99%

Solutions: