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H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. Which statement about the principle of SmartLink & Monitor Link is correct?

A) SmartLink sends Flush messages to notify other devices to refresh MAC address forwarding entries and ARP entries
B) SmartLink is a port linkage solution that monitors the device uplink. Follow the Up/Down status change of the uplink to trigger the Up/Down change of the downlink
C) MonitorLink sends Flush messages to notify other devices to refresh MAC address forwarding entries and ARP entries
D) MonitorLink realizes the redundant backup of the main and backup links, and enables the traffic to be quickly switched to the backup link after the main link fails

2. Regarding the multicast distribution tree model SPT, the correct statement below is ______.

A) Each router on the SPT will maintain (*, G) entries
B) Different multicast sources take themselves as the root and establish SPT independently
C) Each router on the SPT will maintain (S, G) entries
D) In the SPT model, the path taken by the multicast source to reach any receiver is optimal

3. Two routers RTA and RTB are connected through a LAN to form a VRRP backup group. The interface configuration of each router is as follows:
GigabitEthernet1/0 of RTA
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
GigabitEthernet1/0 of RTB
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
From the above information-know

A) Router A is the master router of backup group 1, and backup group 2 has no master router
B) Backup group 1 can be successfully established, and backup group 2 can be successfully established
C) Router A is the master router of backup group 1, and router B is the master router of backup group 2.
D) Backup group 1 can be successfully established, but backup group 2 cannot be successfully established

4. Regarding the rapid switching mechanism of designated ports in RSTP, what are the correct statements?

A) The purpose of the synchronization process is to eliminate the possibility of loops locally on the bridge, and all designated ports need to be blocked during the synchronization process
B) The designated port receives the RST BPDU with the Proposal bit set, and the disadvantage is that this port is a follower port, the port will send the RST BPDU with the Agreement bit set
C) When the designated port in RSTP is in Discarding state, RSTBPDU with Proposal set to be sent
D) The designated port fast switching mechanism must be on the point-to-point link

5. The customer requires that during network design, there must be high-reliability equipment in key parts, and the reliability of the equipment should reach 99.999%.

A) MTBF>Y699^; MTTR<U1
B) MTBF>Y28 years; MTTR<U1
C) MTBF>Y343^; MTTR<U1
D) MTBF>Y9 years; MTTR<U1

Solutions: