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Practice Questions: SCSI Bus Termination

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Q10. When you are using SCSI devices attached in a SCSI chain, which of the following statements is true?

1. Terminate only one end of the SCSI bus.
2. Terminate both ends of the SCSI bus.
3. SCSI bus doesn't require any termination.
4. Terminate the bus on the SCSI device that is sitting at the middle of the bus.

Correct Answer: B.

 Explanation: If the termination is not done, a SCSI devices on the bus will not function properly. This is due to reflection of the signals at the end of the bus. To prevent this, both ends of the SCSI bus need to be terminated. If one end of the SCSI bus is terminated, you may find intermittent problems. Never terminate the bus at a device connected in between.

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