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What WAN Protocol has no error recovery, relying on higher-level protocols to provide reliability?

What WAN Protocol has no error recovery, relying on higher-level protocols to provide reliability?

PrepAway - Latest Free Exam Questions & Answers

A.
ATM

B.
Frame Relay

C.
SMDS

D.
X.25

Explanation:
Answer B is correct; Frame Relay is a packet switched Layer 2 WAN protocol that features no error recovery.

Incorrect Answers and Explanations: A, C, and D: Answers A, C, and D are incorrect. ATM and SMDS are cell-based WAN protocols that provide error correction. X.25 is a packet switched protocol similar to Frame Relay, but X.25 features error recovery.

One Comment on “What WAN Protocol has no error recovery, relying on higher-level protocols to provide reliability?

  1. joe says:

    Frame Relay is a packet switched Layer 2 WAN protocol that features no error recovery.

    ATM and SMDS are cell-based WAN protocols that provide error correction. X.25 is a packet switched protocol similar to Frame Relay, but X.25 features error recovery.




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