Basic Computer Networks Questions and Answers

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Q21
Which of the following digits are known as the terminal number of the network user address (NUA) ?
  • A 5 - 7
  • B 1 - 4
  • C 8 - 12
  • D 13 - 14
Answer: Option C
Q22
Which of the following device is used with an X-25 network to provide service to asynchronous terminals ?
  • A Repeater
  • B Bridges
  • C Gateway
  • D Packet assembled
Answer: Option D
Q23
Which of the following network access standard disassembler is used for connection station to a packet switched network ?
  • A X.3
  • B X.21
  • C X.25
  • D X.75
Answer: Option C
Q24
Four bits are used for packed sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size ?
  • A 4
  • B 8
  • C 15
  • D 16
Answer: Option C
Q25
Which of the following network access standard is used for connecting station to a circuit switched network ?
  • A X.3
  • B X.21
  • C X.25
  • D X.75
Answer: Option B
Q26
Satelite Switched Time-Divsion Multiple Access (SS/TDM) is
  • A the method of determining which device has access to the trasmission medium at any time
  • B a medium access control technique for multiple access transmission media
  • C a form of TDMA in which circuit switching is used to dynamically change the channel assignments
  • D all of these
Answer: Option C
Q27
A station in a network forward incoming packets by placing them on its shortest output queue. What routing algorithm is being used ?
  • A Hot potato routing
  • B Flodding
  • C Static routing
  • D Delta routing
Answer: Option A
Q28
IP address can be used to specify a broadcast and map to hardware broadcast if available. By conversion broadcast address has hosted with all bits
  • A 0
  • B 1
  • C both (a) and (b)
  • D none of these
Answer: Option B
Q29
How many hosts are attached to each of the local area network at your site?
  • A 128
  • B 254
  • C 256
  • D 64
Answer: Option B
Q30
ICMP (internet control message protocol) is
  • A a protocol that handles error and control messages
  • B a protocol used to monitor compouters
  • C Both (a) and (b)
  • D none of these
Answer: Option A

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