单项选择题
When making changes to a server， which of the following is the BEST way to troubleshoot a problem？（）
A. Perform root cause analysis and then test the theory to determine the cause.
B. Make changes to the system and document everything once the problem is resolved.
C. Make multiple changes to all affected areas to resolve all potential issues.
D. Make a change and if the problem is not resolved， reverse the change.
相关考题
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单项选择题
Anadministratorisattemptingtorecoverfromapowerfailureinthedatacenter.Whichofthe followingistheBESTwaytorecovertheservers？（）
A. Bring up the WINS server， the DNS server， then the web server
B. Bring up the web server， the time clock server， then the DHCP server
C. Bring up the backup tape server， the DNS server， then the web server
D. Bring up the active directory server， the DNS server， then the web server -
多项选择题
Whichofthefollowingaretypesofbiometricdevicesusedinserverrooms？（）
A. Mantraps
B. Fingerprint scanners
C. CCTV systems
D. Retina scanner
E. Proxy card readers -
单项选择题
Whichofthefollowingisawaytoprotectserveroperatingsystemsfromashorttermcontractor？（）
A. Biometric devices
B. Limited logon hours
C. Mantraps
D. Rack doors
