单选题An administrator is troubleshooting a communication issue between two computers on the same Layer 2 switch. Which of the following is the BEST way to determine if the switch is causing the issue?()ASetup an ACL that allows and logs all IP traffic between the two computersBConfigure a spanning tree to check for a loopCSetup a span port on the switch to watch for CRC errorsDConnect both computers using a crossover cable

单选题
An administrator is troubleshooting a communication issue between two computers on the same Layer 2 switch. Which of the following is the BEST way to determine if the switch is causing the issue?()
A

Setup an ACL that allows and logs all IP traffic between the two computers

B

Configure a spanning tree to check for a loop

C

Setup a span port on the switch to watch for CRC errors

D

Connect both computers using a crossover cable


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