In the Binary numbering system, a (1) represents a jumper being shorted and a (0) represents a jumper being open. On a three-bit jumper block on a SCSI drive, how would an ID of logical 3 be set? A. 100 B. 10 C. 11 D. 101 E. None of the above

The correct answer is: D. 101

In the Binary numbering system, a (1) represents a jumper being shorted and a (0) represents a jumper being open. On a three-bit jumper block on a SCSI drive, how would an ID of logical 3 be set?

To set an ID of logical 3, we need to short the first and third pins, and leave the second pin open. This can be represented as 101 in binary.

• Option A: 100
  This would represent an ID of logical 2, as the first two pins are shorted.
• Option B: 10
  This would represent an ID of logical 1, as the first pin is shorted.
• Option C: 11
  This would represent an ID of logical 4, as the first and second pins are shorted.
• Option E: None of the above
  This is not a valid option, as it does not represent a valid ID.