CompTIA Server+ (SK0-004) — Question 68

The BEST way for a technician to configure a server rack for full power redundancy is:

Answer options

• A. a single PDU attached to a single UPS
• B. multiple PDUs each attached to a single UPS
• C. multiple PDUs each attached to separate UPSs
• D. multiple PDUs attached to a high availability UPS

Correct answer: D

Explanation

The correct option is D, as using multiple PDUs linked to a high availability UPS provides the best redundancy by ensuring that if one power source fails, the other can take over without interruption. Options A and B do not provide sufficient redundancy, while option C, although better than A and B, still lacks the high availability aspect that is crucial for maximum reliability.