A loopback interface is a virtual interface within the router that remains in the up/up state as long as ________
A) The router is up
B) A shutdown command is not issued on the interface
C) The configuration is stored in startup-config
D) It is tied to a physical interface
A, B
Explanation: A) The loopback interface is fully virtual and remains up/up as long as the router itself is up and no shutdown command is issued.
B) The loopback interface is fully virtual and remains up/up as long as the router itself is up and no shutdown command is issued.
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