Which of the following topologies are used in Fibre Channel? (Choose all that apply)

A.
bus

B.
star

C.
mesh

D.
fabric

Explanation:
The Fibre Channel topologies are Point-to-Point Fibre Channel (FC-P2P), Arbitrated Loop Fibre Channel (FC-AL), and Switched Fabric Fibre Channel (FC-SW).
Incorrect
Answers:
A, B, C: The Fibre Channel do not use bus, star, and mesh topologies. They use Point-to-Point (FC-P2P), Arbitrated Loop (FC-AL), and Switched Fabric (FC-SW) topologies.
References:

Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 210-212.