多选题Which of the following are the FIRST actions to take when an administrator is troubleshooting a server？（）AMake one change at a time and test/confirm the change has resolved the problem.BVerify full system functionality.CReplicate the problem.DDetermine if a common element is causing multiple problems.EIdentify any changes to the server.
多选题
Which of the following are the FIRST actions to take when an administrator is troubleshooting a server？（）
A
Make one change at a time and test/confirm the change has resolved the problem.
B
Verify full system functionality.
C
Replicate the problem.
D
Determine if a common element is causing multiple problems.
E
Identify any changes to the server.
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