Which three steps does a migration include? (Multiple Choice)

Answer(s): A,B,C

If a neighbor has not advertised a route, the neighbor may have not put description information about the route to the local OSPF LSDB.

Answer(s): A

Which of the following statements regarding network maintenance work are true? (Multiple Choice)

For device software maintenance, onsite operations are allowed but only remote operations are recommended.
The device software running is closely related to services running on the device.
The external environment where hardware runs does not need special attention.
For device environment maintenance, maintenance personnel need to go to the site or even use some professional tools for observation and measurement.

Answer(s): B,D

Which of the following causes may lead to a failure for hosts in the same VLAN to communicate with each other? (Multiple Choice)

The interfaces connected to the users are shut down manually or the physical interfaces are damaged.
The switch learns incorrect MAC addresses.
Port isolation is configured on the switch.
Incorrect mappings between interfaces and MAC addresses are configured on the switch.

Answer(s): A,B,C,D

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