Cisco Wireless LAN Certification Exam 642-587

You are working as a technician at certifyme.com. You have been asked to
troubleshoot a problem where none of 3 SCSI drives in a chain are seen. To
troubleshoot this problem, you should start with checking:

A. for SCSI-2 host adapter ID 7 or 15 and whether all the hard drives are terminated and
have a consecutive ID of 0, 1 and 2.310-200
B.
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for SCSI host adapter ID 0; whether the chain is terminated and that all hard disks share
the same ID.642-503
C. for the SCSI-2 host adapter ID 7 or 15 and whether both ends of the chain are
terminated and that every hard drives has a unique ID.
D. whether the host adapter is terminated and has a unique ID and that the 3 hard drives
have a consecutive ID of 1, 2 and 3.

Answer: C
Explanation: All devices on a parallel SCSI bus must have a SCSI ID.642-587 The initiator
(adapter or controller) SCSI ID is usually set by a physical jumper or switch. The
target (disk-drive) SCSI IDs are either set by physical jumpers or by control signals
which vary for each connector on an enclosure backplane.