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Computer Aptitude

BASIC COMPUTER KNOWLEDGE MCQs

Total Questions : 1975 | Page 61 of 198 pages
Question 601.  the physical layer concerns with
  1.    bit-by-bit delivery
  2.    process to process delivery
  3.    application to application delivery
  4.    none of these
 Discuss Question
Answer: Option A. -> bit-by-bit delivery
Explanation :
Question 602.  crc stands for
  1.    cyclic redundancy check
  2.    code repeat check
  3.    code redundancy check
  4.    cyclic repeat check
 Discuss Question
Answer: Option A. -> cyclic redundancy check
Explanation :
Question 603.  the data link layer takes the packets from _____ and encapsulates them into frames for transmission.
  1.    network layer
  2.    physical layer
  3.    transport layer
  4.    application layer
 Discuss Question
Answer: Option A. -> network layer
Explanation :
Question 604.  when 2 or more bits in a data unit has been changed during the transmission, the error is called
  1.    random error
  2.    burst error
  3.    inverted error
  4.    none of these
 Discuss Question
Answer: Option B. -> burst error
Explanation :
Question 605.  the physical layer concerns with
  1.    bit-by-bit delivery
  2.    process to process delivery
  3.    application to application delivery
  4.    none of these
 Discuss Question
Answer: Option A. -> bit-by-bit delivery
Explanation :
Question 606.  transmission control protocol is
  1.    connection oriented protocol
  2.    uses a three way handshake to establish a connection
  3.    recievs data from application as a single stream
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Explanation :
Question 607.  user datagram protocol is called connectionless because
  1.    all UDP packets are treated independently by transport layer
  2.    it sends data as a stream of related packets
  3.    both (A) and (B)
  4.    none of these
 Discuss Question
Answer: Option A. -> all UDP packets are treated independently by transport layer
Explanation :
Question 608.  the technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called
  1.    piggybacking
  2.    cyclic redundancy check
  3.    fletcher’s checksum
  4.    none of these
 Discuss Question
Answer: Option A. -> piggybacking
Explanation :
Question 609.  transmission control protocol is
  1.    connection oriented protocol
  2.    uses a three way handshake to establish a connection
  3.    recievs data from application as a single stream
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Explanation :
Question 610.  the technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called
  1.    piggybacking
  2.    cyclic redundancy check
  3.    fletcher’s checksum
  4.    none of these
 Discuss Question
Answer: Option A. -> piggybacking
Explanation :

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