多项选择题

A server is having problems accessing its presented storage on a SAN. Which of the following could be causing the problem？（）

A. NIC
B. HBA
C. Tape backup drive
D. SCSI adapter
E. CPU

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单项选择题

Which of the following can occur if the maximum rated load is exceeded on an uninterruptible power supply （UPS）？（）

A. There is a fire hazard potential if a power outage occurs.
B. The last system plugged into the UPS will not be provided any power.
C. The UPS will draw more power from the circuit to compensate.
D. The runtime of the UPS will be insufficient if a power outage occurs.

单项选择题

Which of the following expansion cards should be installed into a server to provide fiber channel SAN connectivity？（）

A. HBA
B. USB
C. UAC
D. NIC

单项选择题

When an administrator is troubleshooting a system， which of the following describes the NEXT course of action if a change does not solve the problem？（）

A. Establish a new theory of probable cause.
B. Reverse the change.
C. Implement the next logical change.
D. Perform a root cause analysis.