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Match each bus in List I with its access method in List II.

List I

A. ARINC 429

B. MIL-STD-1553

C. ARINC 629

D. ARINC 664

List II

1. One transmitter broadcasting continuously

2. A controller commanding each transfer

3. Distributed timing intervals avoiding collision

4. Switching with per-link traffic policing

Select the correct match.

  • A.A-4, B-2, C-3, D-1
  • B.A-1, B-2, C-3, D-4
  • C.A-2, B-1, C-3, D-4
  • D.A-1, B-3, C-2, D-4

Answer: B

Each design achieves determinism by a different mechanism while lifting a restriction of the one before it. Knowing which mechanism belongs to which bus is what makes their trade-offs comparable. Each solves the problem differently.

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