Computer Science · Computer Networks
Which of the following statements are true regarding WAN protocols? A. X.25 is a connection-oriented network protocol. B. X.25 does not support switched virtual circuits. C. Frame Relay service provides error correction via acknowledgements. D. Frame Relay service provides detection of transmission errors but relies on higher layers for recovery.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B and C only
- 2C and D only
- 3B and D only
- 4A and D only✓
Correct answer
A and D only
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