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SCSI-1 and SCSI-2 "interoperability" got you confused?

A. SCSI-1 devices are supported on a SCSI-2 adapter. This
config will provide SCSI-1 performance.

B. SCSI-2 devices are supported on a SCSI-1 adapter. This
config will provide SCSI-1 performance.

C. A mix of SCSI-2 and SCSI-1 devices are supported on a SCSI-1
adapter. All devices will have SCSI-1 performance.

D. A mix of SCSI-2 and SCSI-1 devices are supported on a SCSI-2
adapter. SCSI-2 devices will have SCSI-2 performance (10 MB/sec)
and SCSI-1 devices will have SCSI-1 performance (4-5 MB/sec).

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