CompTIA Server+ (SK0-004) — Question 75

When grid power goes out, all servers in a rack lose power immediately. The server administrator confirms the servers have dual power supplies, which are connected to separate PDUs. Each of the PDUs is connected to a different UPS. Which of the following is the MOST likely cause of the problem?

Answer options

• A. Both of the UPS devices were set for the wrong voltage.
• B. The power circuit was tripped on both PDUs.
• C. The server power supplies failed during the outage.
• D. The UPS batteries were discharged.

Correct answer: B

Explanation

The most likely cause of the issue is that the power circuit was tripped on both PDUs, resulting in the loss of power to all servers. The other options, while possible, are less likely since the dual power supplies and separate UPS systems should provide redundancy unless both PDUs are affected simultaneously.