PDU stands for Power Distribution Unit.

• A. Power Distribution Unit
• B. Primary Distribution Unit
• C. Peripheral Distribution Unit
• D. Power Data Unit

Answer: (A)

The main idea here is recognizing what the acronym PDU stands for in power distribution contexts. A PDU is the Power Distribution Unit—the equipment that takes incoming electrical power and distributes it to multiple devices in a rack or cabinet. It provides organized outlets for equipment, overcurrent protection (like breakers or fuses), and often monitoring or remote control of power to individual outlets or banks of outlets. In telecom sites and similar environments, PDUs help manage and protect power to servers, radios, and other critical gear, and they’re designed to aid reliability and maintenance.

The other terms don’t match how this equipment is used or described in practice. Primary Distribution Unit would imply distribution of the main power supply, which isn’t the common rack-level term. Peripheral Distribution Unit isn’t a standard term for the power distribution devices used in racks. Power Data Unit would mix the concepts of power with data, which isn’t how this equipment is defined. So, the correct designation for the device that distributes power to rack equipment is Power Distribution Unit.