COMPTIA A+ Practice Exam 2025 - Free CompTIA A+ Practice Questions and Study Guide

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How many devices can exist in a SCSI chain?

7 devices

8 devices

In a SCSI (Small Computer System Interface) chain, up to 8 devices can be connected. This includes one SCSI host adapter (usually integrated into a computer or server) and up to 7 additional devices such as hard drives, CD-ROMs, or scanners. Each device in the SCSI chain is assigned a unique ID ranging from 0 to 7.

SCSI's ability to connect multiple devices makes it particularly useful in environments where a variety of peripherals need to be managed by a single host. As the standard evolved, some SCSI variants allowed for even more devices, but the basic SCSI setup allows specifically 8 devices, confirming the answer.

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5 devices

10 devices

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