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Chapter 2 Data Link Control MCQs

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1. How many fields frame in High-level Data Link Control (HDLC) may contain?





2. _________ control refers to a set of procedures used to restrict the amount of data that the sender can send before waiting for acknowledgment.





3. _________ control refers to methods of error detection and correction.





4. _________ control in the data link layer is based on automatic repeat request, which is the retransmission of data.





5. ARQ stands for _________.





6. Both Go-Back-N and Selective-Repeat Protocols use a _________.





7. Data link control deals with the design and procedures for _________ communication.





8. HDLC is an acronym for _________.





9. In _________ framing, there is no need for defining the boundaries of frames.





10. In _________ protocols, we use _________.





11. In _________, the configuration is balanced. The link is point-to-point, and each station can function as a primary and a secondary.





12. In a _________ protocol, the data section of a frame is a sequence of bits.





13. In a _________ protocol, the data section of a frame is a sequence of characters.





14. In PPP, _________ is a simple authentication procedure with a two-step process:





15. In Selective Repeat ARQ, if 5 is the number of bits for the sequence number, then the maximum size of the receive window must be _________.





16. In the _________ Protocol, the sender sends one frame, stops until it receives confirmation from the receiver, and then sends the next frame.





17. Stop-and-Wait ARQ is a special case of Go-Back-N ARQ in which the size of the send window is 1.





18. The _________ Protocol has flow control, but not error control.





19. The _________ Protocol has both flow control and error control.





20. The Simplest Protocol and the Stop-and-Wait Protocol are for _________ channels.





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