What are two possible causes if an Ethernet interface is up and the line protocol is down? (Choose
two)
A.
The Ethernet cable might not be attached properly
B.
There is a speed or duplex mismatch with the remote device
C.
The Ethernet interface has been manually disabled
D.
There is a Layer 2 mismatch in the encapsulation type
E.
Keepalives are not being received by the local device
B is wrong , it should be E
B is correct. Period. E is related to layer3 which is routing. Problem is at layer 2.