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What is FRAD in frame relay network?

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What is FRAD in frame relay network?

(a) FRAD assembles and disassembles the frames coming from other protocols

(b) FRAD is used for modulation and demodulation

(c) FRAD is used for error detection

(d) FRAD is used for error recovery

I had been asked this question during an interview for a job.

The query is from Frame Relay topic in division Frame Relay of Computer Network

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The correct choice is (a) FRAD assembles and disassembles the frames coming from other protocols

Easy explanation: FRAD stands for Frame Relay Assembler/Disassembler. It converts packets into frames that can be transmitted over Frame Relay Networks. It operates at the physical layer.

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