Question 21
The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? (Multiple Choice)


Question 22
Telnetlib is a module that implements the Telnet protocol that comes with Python.
Question 23
What kind of message does the OSPF protocol use to discover and maintain neighbor relationships?
Question 24
Which of the following statements about link aggregation is correct?
Question 25
The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? (Multiple Choice)
