CCIE Data Center (legacy) — Question 119

What are the two parallel SCSI specifications? (Choose two.)

Answer options

• A. Up to 25 m bus length
• B. Only one device per SCSI bus
• C. Up to 16 devices per SCSI bus
• D. Half-duplex operation
• E. Full-duplex operation

Correct answer: A, C

Explanation

Options A and C are correct because parallel SCSI can support a bus length of up to 25 meters and allows for a maximum of 16 devices per bus. Option B is incorrect as parallel SCSI can have multiple devices on a single bus. Options D and E are also incorrect because parallel SCSI operates in half-duplex mode, not full-duplex.