单项选择题

Which of the following factors is the MOST likely cause of a power supply fan failure？（）

A. Extreme temperature variances
B. Extreme humidity variances
C. Power stability fluctuations
D. Excessive dust accumulation

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单项选择题

An administrator logs into a server and notices slow performance. When the system finishes the logon process a message is displayed saying the system is out of Virtual Memory. Which of the following is the MOST likely cause of this issue？（）

A.The drives have been configured as basic.
B.The system partition with the page file is out of space.
C.The VMFS has bad sectors.
D.The drivers for the memory have become corrupt.

单项选择题

A user selects their proper domain and is unable to log into their Windows computer.The error states：‘System cannot log you on to the domain because the system’s computer account in its primary domain is missing or the password on that account is incorrect’.Which of the following is the MOST likely cause for this error？（）

A.The computer’s account was removed from Active Directory.
B.The user’s account was removed from Active Directory.
C.The computer was disjoined from the domain.
D.The user typed in the wrong password.

单项选择题

An administrator identifies that a server is shutting down. The administrator powers up the server and OS loads but after a few minutes it powers down again. Which of the following is the cause?（）

A. Redundant power supply failure
B. CPU overheating
C. Memory failure
D. Hard disk failure