Which three components are hot swappable in a Cisco UCS Blade Server and Chassis? (Choose three.)

Fabric Extenders in the UCS 5108 chassis are engineered as hot-swappable I/O modules. They can be removed and reinserted while other blade modules continue operating, as the chassis backplane maintains connectivity to unaffected blades.

UCS chassis power supplies are designed with N+1 redundancy and are fully hot-swappable FRUs. Swapping a power supply during operation does not interrupt power delivery to the remaining blades in the chassis.

Heat sinks are passive cooling components physically press-fitted to CPUs and require the blade to be fully removed and disassembled before they can be accessed or replaced.

SAS hard drives in Cisco UCS blade servers support hot-swap at the drive carrier level. They can be physically replaced while the blade is powered on and are typically deployed in RAID configurations to maintain data availability during the swap.

DIMMs require the server to be completely powered off before replacement because the memory controller cannot safely relinquish live DIMM slots, and forced removal risks data corruption or system faults.

Mezzanine cards are connected directly to the blade motherboard via a dedicated expansion slot and require the blade to be powered down and removed from the chassis before the card can be safely seated or removed.