Which of the following are possible SCSI ID ranges on a wide SCSI adapter?

The correct answer is D. 0 - 15. Wide SCSI expands the device ID range from the narrow SCSI limit of 8 to 16 total IDs, numbered 0 through 15.

Server hardware installation and management

Question

Options

A1 - 7
B1 - 16
C0 - 7
D0 - 15

How the community answered

(47 responses)

A
6% (3)
B
2% (1)
C
2% (1)
D
89% (42)

Why each option

Wide SCSI expands the device ID range from the narrow SCSI limit of 8 to 16 total IDs, numbered 0 through 15.

A1 - 7

The range 1-7 describes only 7 IDs and incorrectly omits ID 0, which is a valid SCSI device ID.

B1 - 16

The range 1-16 omits ID 0 and introduces ID 16, which does not exist in Wide SCSI addressing.

C0 - 7

The range 0-7 is correct for narrow (8-bit) SCSI, not wide SCSI, which supports 16 IDs.

D0 - 15Correct

Wide SCSI uses a 16-bit bus that supports 16 addressable device IDs, numbered 0 through 15. The numbering begins at 0, not 1, which is standard for SCSI addressing. The host adapter itself occupies one of these IDs, typically ID 7.

Concept tested: Wide SCSI device ID addressing range

Topics

#SCSI#wide SCSI#device IDs#storage interfaces

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