Practice Quiz

CompTIA A+ 220-901

Category - Hardware

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When working with SCSI hard drives, of which of the following need you be aware (select all that apply)?
  1. The SCSI chain must be terminated.
  2. All SCSI devices must have a unique ID.
  3. All SCSI devices must be configured for a RAID array.
  4. The Windows installation automatically installs SCSI drivers.
Explanation
Answers: A and B - All SCSI devices must be given a unique ID and the SCSI chain must be terminated.

Key Takeaway - Due to the way SCSI communicates, the system needs to know where the devices terminate so the controller knows not to send the signal to the other devices (otherwise, a loop is created). Each SCSI device also must be given an ID. Windows does not automatically install SCSI drivers-in fact, this option must be chosen when loading the Windows installation. SCSI is often used in a RAID array, but that is not a requirement of using SCSI.
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