Computer Science Mock Test UGC-NET (Paper II & III- Computer Networks) - Part 26

This Quiz is posted with the sole aim of guiding the aspirants of UGC-NET /CSIR -NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......
  1.  What is the default port number for FTP?
    1.  16
    2.  21
    3.  20
    4.  32

  2. The access method used in Ethernet LAN is _____.
    1.  CSMA/CA 
    2.  CSMA/CD
    3.  CMA/CD 
    4.  CLIP

  3. How many hosts can successfully send data simultaneously on Ethernet? 
    1.  2
    2.  4
    3.  16
    4.  8

  4. There are n stations in a slotted LAN. Each station attempts to transmit with a probability p in each time slot. What is the probability that ONLY one station transmits in a given time slot? 
    1.  1-(1-p)^(n-1)
    2.  p(1-p)^(n-1)
    3.  (1-p)^(n-1)
    4.  np(1-p)^(n-1)

  5. Point-to-point transmission with one sender and one receiver is sometimes called _______ .
    1.  Unicasting
    2.  Personal area network
    3.  LAN
    4.  Multicasting 

  6. Loopback address ___________of IPv6 address is equivalent to the IPV4 loopback address 127.0.0.1.
    1.  (: : 0) 
    2.  (: : 1)
    3.  (1 : : )
    4.  (: : ) 

  7. Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another?
    1.  SNMP
    2.  SMTP
    3.  FTP 
    4.  Rpe

  8. State the following statement is true or false.
    i) In class B addresses a total of more than 1 billion addresses can be formed.
    ii) Class E addresses are reserved for future or experimental use.
    1.  False, False
    2.  False, True
    3.  True, False 
    4.  True, True

  9.  ___________ address use 7 bits for the <network> and 24 bits for the <host> portion of the IP address.
    1.  Class E
    2.  Class D
    3.  Class A
    4.  Class B

  10. Which of the following is an application layer service?
    1.  file transfer and access
    2.  remote log-in 
    3.  mail service
    4.  all of the above



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