Question

In the 3-level group address structure, what are the value ranges of main / middle / sub?

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Answer

A — Main 0-31, Middle 0-7, Sub 0-255

Correct: The 3-level structure uses main 0-31, middle 0-7, sub 0-255.

All proposed choices (exam context)
  1. A.Main 0-31, Middle 0-7, Sub 0-255✓
  2. B.Main 0-15, Middle 0-15, Sub 0-255
  3. C.Main 0-31, Middle 0-255, Sub 0-7
  4. D.Main 0-7, Middle 0-31, Sub 0-2047
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