220-802 Question #232: Real Exam Question with Answer & Explanation

The correct answer is B: HDD. Cable Select; Optical DrivE. Cable Select. When using Cable Select mode on a PATA channel, all devices on that cable must be set to Cable Select - mixing with Master or Slave jumper settings causes conflicts.

Question

A technician is having boot issues with a newly built PC, and notices the following jumper configurations for each PATA device: HARD DRIVE. MASTER OPTICAL DRIVE. CABLE SELECT Which of the following jumper configurations should be used instead?

Options

AHDD. Cable Select; Optical DrivE. Master
BHDD. Cable Select; Optical DrivE. Cable Select
CHDD. Slave; Optical DrivE. Slave
DHDD. Master; Optical DrivE. Master

Explanation

When using Cable Select mode on a PATA channel, all devices on that cable must be set to Cable Select - mixing with Master or Slave jumper settings causes conflicts.

Common mistakes.

A. Setting the HDD to Cable Select while the optical drive is Master still mixes jumper modes, which will produce the same conflict as the original configuration.
C. Setting both devices to Slave with no Master device on the channel results in an invalid configuration - each IDE channel requires exactly one Master device.
D. Setting both devices to Master on the same IDE channel creates a conflict because two devices cannot simultaneously assert Master status on the same ATA bus.

Concept tested. Consistent jumper configuration for PATA Cable Select mode

Reference. https://learn.microsoft.com/en-us/troubleshoot/windows-server/backup-and-storage/troubleshoot-ata-atapi-ide

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