Multiple choice

Which of the following functions does a BSC ENQ code perform?

  1. Polls

  2. Bids

  3. Selects

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

BSC (Binary Synchronous Communication) uses ENQ (Enquiry) for multiple control functions. It's used to poll a station to check if it has data to transmit, to bid for control of the line, and to select a specific station for communication. Therefore, ENQ performs all three functions - polling, bidding, and selection.

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