Which of the following redundant components is utilized during partial electrical failures?

NICs provide network redundancy, such as link aggregation or teaming, to protect against network path failures, not electrical power failures.

Redundant Power Distribution Units (PDUs) are specifically designed to manage and distribute electrical power to multiple pieces of equipment within a rack or data center. During a partial electrical failure, such as the loss of one power feed or one PDU, the redundant PDU or an alternate power path ensures that critical equipment continues to receive power, maintaining uptime.

HVAC systems provide environmental cooling redundancy to protect against overheating, not electrical power distribution failures.

HBAs provide storage connectivity redundancy, typically through multipathing, to protect against storage path failures, not electrical power failures.