What is the maximum data transfer rate supported by ATA-4?

A.
5 MBps

B.
8.3 MBps

C.
16.7 MBps

D.
33.3 MBps

E.
66 MBps

Explanation:
ATA-4, also known as Ultra ATA 66 has a maximum transmission rate of 66 MBps Incorrect Answers: A: The original SCSI specification has a maximum transmission rate of 5 MBps.
B: The original ATA specification has a maximum transmission rate of 8.3 MBps.
C: ATA-2 doubled the maximum transmission rate of ATA to 16.7 MBps.
D: ATA-3, also known as Ultra ATA 33 has a maximum transmission rate of 33.3 MBps.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 168-173.