Final answer:
Hardware fault tolerance is the correct answer, as it involves designs such as redundant power supplies that ensure continuous operation in the event of a power supply failure.
Step-by-step explanation:
The type of fault tolerance that compensates for a failed power supply is a. Hardware fault tolerance. Hardware fault tolerance is a design within a computer system that allows it to continue its intended operation, possibly at a reduced level, rather than failing completely, when some part of the system fails. In the context of a power supply, this might involve using redundant power supplies so that if one fails, the other can take over without any interruption in service. This is a crucial aspect of system design for servers and other mission-critical systems that require high availability.
The correct answer is a. Hardware fault tolerance. This type of fault tolerance compensates for a failed power supply. Hardware fault tolerance ensures that a system can continue operating even if one or more hardware components fail. It can be achieved through redundant hardware, such as backup power supplies or mirrored storage devices.