Which of the following computer standard supports a data transfer rate of 400 Mbps and up to 63
devices?

A.
USB 1.1

B.
USB 2.0

C.
IEEE 1394

D.
Ultra SCSI 2

Explanation:
The IEEE 1394 standard also known as FireWire supports data transfer speeds of 400 Mbps,
although IEEE 1894b has a data transfer speed of 800 Mbps.
Incorrect Answers:
A: The maximum data transfer rate speed of USB 1.1 is 12 Mbps.
B: The maximum data transfer rate speed of USB 2.0 is 480 Mbps.
D: The maximum data transfer rate speed of Ultra SCSI 2 is 80 Mbps.References:David Groth and
Dan Newland, A+ Complete Study Guide (2nd Edition), Sybex, Alameda CA, 2002, p. 130