Which of the following statements regarding ATA and ATA-2 is TRUE?
A.
ATA supports multiword direct memory access (DMA) modes 1 and 2.
B.
ATA-2 supports Programmed Input/Output (PIO) modes 3 and 4.
C.
ATA supports logical block addressing (LBA) and block transfers.
D.
ATA-2 supports multiword direct memory access (DMA) mode 3.
Explanation:
ATA-2 supports Programmed Input/Output (PIO) modes 3 and 4, and multiword direct memory access (DMA) modes 1 and 2.
Incorrect
Answers:
A: ATA supports Programmed Input/Output (PIO) modes 0, 1, and 2. It did not support direct memory access (DMA) modes. Support for DMA modes was first introduced in the ATA-2 specification.
C: ATA does not support logical block addressing (LBA) and block transfers. Support for LBA and block transfers was first introduced in the ATA-2 specification.
D: ATA-2 supports multiword direct memory access (DMA) modes 1 and 2, but not DMA mode 3. Support for DMA mode 3 was first introduced in Ultra-ATA specification.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 168-173.