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H3C Constructing H3C High-Performance Campus Networks Sample Questions:
1. Routers running PIM-DM will periodically send Hello messages to discover neighbors, establish and maintain neighbor relationships. The following descriptions of Hello messages are correct. __
A) All PIM routers are members of the 224.0.0.13 multicast group
B) When the DR is elected, the router with the higher priority of the Hello message will become the DR
C) The router sends PIM Hello in multicast mode, the destination address is 224.0.0.13
D) If Hello messages have the same priority, the router with the larger interface IP address will become the DR
E) When the router runs IGMPV2, the DR is elected for the shared network segment through the PIMHello message, and the DR serves as the Querier of IGMP
2. Regarding the comparison of RSTP and STP BPDU format, the following statements are correct:
A) The TCA bit is not used in the topology change process defined by RSTP
B) In the RST BPDU, the 8 bits of the Flags field have actual meanings
C) RSTP does not separately define the BPDU type for the topology change process
D) In the RST BPDU, the P/A flag in the Flags field is used for the root port fast switching mechanism
3. Among the following PIMV2 messages, the destination address is a unicast address:
A) Graft
B) Assert
C) Hello
D) Prune
E) Join
F) Register
4. In the switching network shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are set as the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is VLAN20 Secondary VLA after setting the IP address of each device as shown in the figure, the local proxy ARP function is enabled on both SWA and SWB. At first, the switch and pc did not learn their corresponding ARP entries in PCA. During the process of pinging PCB, PCA will send an ARP request. The source MAC address of the ARP request packet forwarded by the switch to PCB is
A) 0011.1111.1111
B) 00E0.FC00.0010
C) 00E0.FC00.0020
D) 0000.0000.0000
5. Regarding BPDU protection, the following statements are correct
A) BPDU protection is configured in the protected port view
B) Edge ports that are not configured with BPDU protection will be converted to non-edge ports upon receiving BPDUs
C) BPDU protection is configured in the system view
D) After configuring BPDU protection, the edge port will be closed when receiving BPDUs
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: A,B,C | Question # 3 Answer: A,F | Question # 4 Answer: C | Question # 5 Answer: B,C,D |
By Yedda
