System Administrator 2026
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An error is burst error, if two or more consecutive bits of the data unit are corrupted.
  • A. True
  • B. False
  • C.
  • D.
How many bits will be added to a data word to become a code word in simple parity check code?
  • A. 1 bit
  • B. 2 bits
  • C. 0 bits
  • D. 4 bits
Which of the following error correcting code is not a linear bock code?
  • A. Low density parity check
  • B. Hamming codes
  • C. Binary convolution codes
  • D. Reed-solomon codes
Which error correcting code works well for burst errors among the following?
  • A. Cyclic redundancy check
  • B. Hamming code
  • C. Checksum
  • D. Reed solomon codes
What is the maximum number of errors that can be detected using two-dimensional parity check code?
  • A. 4
  • B. 5
  • C. 3
  • D. 2
Simple parity-check is used to detect the even number of errors also.
  • A. True
  • B. False
  • C.
  • D.
Which of the following is not an error detecting code?
  • A. Hamming code
  • B. Checksum
  • C. Parity check
  • D. Cyclic redundancy check
How cyclic redundancy check code can also be called?
  • A. Fletcher’s checksum
  • B. Polynomial code
  • C. Generator polynomial code
  • D. Checksum
Which of the following are the types of basic protocols that are present in multiple access control in data link layer?
  • A. Random, controlled, channelization
  • B. Controlled, channelization
  • C. Random, channelization
  • D. Random, controlled, contributed
Which aspect of the random-access protocols makes them contention methods?
  • A. No rules for accessing medium
  • B. Shared bandwidth
  • C. Authorized access for medium
  • D. Scheduling time for medium
Word of the Day
18 Jun
Betray
expose (one’s country, a group, or a person) to danger by treacherously giving information to an enemy.
دغا دینا، غداری کرنا، ساتھ چھوڑنا

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