Which of the following allows for the removal and insertion of PCI devices without powering down the system?

A.
PCI bus mastering.

B.
PCI-Extended.

C.
Hot Plug PCI.

D.
PCI Express.

Explanation:
Hot Plug PCI, which is a hot swap technology, allows for the removal and insertion of PCI devices without shutting down the system’s power. Instead the individual PCI slots can be powered on and off independently of the rest of the system.
Incorrect Answers:
A: PCI bus mastering allows multiple PCI devices to run simultaneously without locking each other out and it allows PCI devices to transfer data to and from each other without referencing the CPU or the system memory.
B, D: PCI-Extended (PCI-X) and PCI Express (PCIe) are variations of the PCI specification.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 117-120.