单选题An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）AStraight-through cable is used to connect both switchesBLoopback plug is connectedCCrossover cable is used to connect both switchesDCable is a rollover cable
单选题
An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）
A
Straight-through cable is used to connect both switches
B
Loopback plug is connected
C
Crossover cable is used to connect both switches
D
Cable is a rollover cable
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