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Last Updated: Jun 05, 2026
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1. In the RSTP network shown in the figure, according to the configuration of SWC in the figure, it can be judged that the type of E0/1 port of SWC is? (Multiple choice)
A) Designated port
B) Root port
C) Edge port
D) Preliminary port
2. Which of the following statements about stack splitting is incorrect?
A) Multiple stack systems after splitting will have the same IP address and MAC address. To avoid causing network failures, the stack will perform MAD detection. The party that fails the MAD detection competition will close all physical ports except reserved ports.
B) If the master and slave switches are still in the same stack system after the stack splits, the slave switch separated from the original master and slave switches will re-elect the master and slave switch due to protocol packet timeout.
C) If the primary switch is in two stacking systems after the stack is split, the stack system where the original master switch is located updates the topology, reassigns the primary switch, and the original standby switch is promoted to the primary switch in the new stack system, and a new standby switch is elected at the same time
D) After the stack is split, the MAC addresses of the two stack systems will change immediately.
3. Which of the following working mechanisms are included in PIM-DM? (Multiple choice)
A) Pruning
B) Status refresh
C) Grafting
D) Diffusion
4. Which of the following parameter information is carried in the BGP Open message? (Multiple choice)
A) Router ID
B) Routing attributes
C) Local autonomous system number
D) Hold Time
5. The RSTP protocol provides a variety of protection functions. For example, when the edge terminal port is configured in the protection state, the processing method of the edge port after receiving the BPDU message is:
A) Forward BPDU messages as required
B) Obtain relevant information after the BPDU message
C) Close the port
D) Directly discard the BPDU message
Solutions:
| Question # 1 Answer: A,C | Question # 2 Answer: D | Question # 3 Answer: A,B,C,D | Question # 4 Answer: A,C,D | Question # 5 Answer: C |
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