单选题Which of the following should be used to test an internal NIC without having to connect it to thenetwork?（）ALoopback cableBCrossover cableCRollover cableDStraight cable
单选题
Which of the following should be used to test an internal NIC without having to connect it to thenetwork?（）
A
Loopback cable
B
Crossover cable
C
Rollover cable
D
Straight cable
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