单选题A technician is called for a computer that is not connecting to the network. Which of the following would be the MOST common tool used to identify the issue? （）ACable testerBMultimeterCLoop back plugsDCrossover cable
单选题
A technician is called for a computer that is not connecting to the network. Which of the following would be the MOST common tool used to identify the issue? （）
A
Cable tester
B
Multimeter
C
Loop back plugs
D
Crossover cable
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