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Question:
 In asynchronous serial communication the physical layer provides ______

1. start and stop signalling

2.flow control

3.both start & stop signalling and flow control

4.only start signalling

Posted Date:-2021-12-26 10:53:23

More MCQS Questions and answers

  1. A subset of a network that includes all the routers but contains no loops is called ________
  2. A _____ is a TCP name for a transport service access point.
  3. Data communication system spanning states, countries, or the whole world is ______
  4. In asynchronous serial communication the physical layer provides ______
  5. The physical layer is responsible for _______
  6. Transmission control protocol _______
  7. Transport layer aggregates data from different applications into a single stream before passing it to _____
  8. Which address is used to identify a process on a host by the transport layer?
  9. Which one of the following is a version of UDP with congestion control?
  10. A 4 byte IP address consists of _____
  11. A single channel is shared by multiple signals by ______
  12. An endpoint of an inter-process communication flow across a computer network is called _____
  13. Automatic repeat request error management mechanism is provided by ________
  14. Bits can be sent over guided and unguided media as analog signal by _____
  15. CRC stands for _______
  16. Data communication system within a building or campus is________
  17. Header of a frame generally contains ______
  18. ICMP is primarily used for _______
  19. In TDM, slots are further divided into _______
  20. In virtual circuit network each packet contains _________
  21. Physical or logical arrangement of network is _______
  22. Socket-style API for windows is called ________
  23. The data link layer takes the packets from _________ and encapsulates them into frames for transmission.
  24. The network layer is concerned with __________ of data.
  25. The network layer protocol for internet is ______
  26. The physical layer is concerned with ________
  27. The physical layer provides __________
  28. The physical layer translates logical communication requests from the ______ into hardware specific operations.
  29. The portion of physical layer that interfaces with the media access control sublayer is called ________
  30. The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called ______
  31. Transmission data rate is decided by _______
  32. Transport layer protocols deals with ________
  33. User datagram protocol is called connectionless because ________
  34. When 2 or more bits in a data unit has been changed during the transmission, the error is called _______
  35. Which layer provides the services to user?
  36. Which network topology requires a central controller or hub?
  37. Which of the following are transport layer protocols used in networking?
  38. Which of the following is a data link protocol?
  39. Which of the following is a transport layer protocol?
  40. Which of the following is not correct in relation to multi-destination routing?
  41. Which of the following is the multiple access protocol for channel access control?
  42. Which of the following routing algorithms can be used for network layer design?
  43. Which of the following tasks is not done by data link layer?
  44. Which one of the following algorithm is not used for congestion control?
  45. Which one of the following is not a function of network layer?
  46. Which sublayer of the data link layer performs data link functions that depend upon the type of medium?
  47. Which transmission media provides the highest transmission speed in a network?
  48. Wireless transmission of signals can be done via _____
  49. _____ is the multiplexing technique that shifts each signal to a different carrier frequency.
  50. ______ topology requires a multipoint connection.
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