Computer Networks Interview Questions and Answers

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MCQ on Computer Networks :

1.) Size of the logical record is

  1. 20780 bytes
  2. 31978 bytes
  3. 32767 bytes
  4. 32761 bytes
… Answer is c)

2.) Size of XNS address is 

  1. 6 bytes
  2. 4 bytes
  3. 12 bytes
  4. 8 bytes
… Answer is c)

3.) Fork() is to

  1. divide the process
  2. do fragmentation
  3. create child process
  4. pass the data
… Answer is c)

4.) Size of transmission header

  1. 6 bytes
  2. 26 bytes
  3. 6 to 26 bytes
  4. 6 to 32 bytes
… Answer is c)

5.) accept() system call returns

  1. A port number
  2. A socket descriptor
  3. An address
  4. An address structure
… Answer is c)

6.) Closesocket() returns

  1. integer
  2. float
  3. char
  4. double
… Answer is a)

7.) BSD is 

  1. Bell Software Descriptor
  2. Berkeley standard distribution
  3. The Berkeley socket descriptor
  4. Berkeley Software Distribution
… Answer is d)

8.) Address conversion routines are

  1. inetaddr and sockaddr_in
  2. sockaddr_in and inet_ntoa
  3. inet_ntoa and inet_addr
  4. inet_ntoa and sockaddr
… Answer is c)

9.) In winsock, method for error handling is

  1. WSAsocket
  2. WSAconnect
  3. WSAGetLastError
  4. getsockname
… Answer is c)

10.) WSASendTo is to send 

  1. Data in the connection-oriented mode
  2. Data in the connection-less mode
  3. Control data
  4. ASCII data
… Answer is a)

11.) SOCKET_ERROR is 

  1. 0
  2. 1
  3. -1
  4. Any positive integer
… Answer is c)

12.) CF_DEFER is

  1. A value returned by socket()
  2. A value returned by bind()
  3. The value returned by connect()
  4. A value returned by condition function
… Answer is d)

13.) Three operations that can be performed on routing sockets are

  1. Write, read and insert
  2. Write, read and delete
  3. The Write, read and sysctl
  4. Read, check and insert
… Answer is a)

14.) Number of routing messages are

  1. 10
  2. 12
  3. 14
  4. 6
… Answer is b)

15.) Which of the following is the argument for getrt command?

  1. Port number
  2. IP address
  3. Socket descriptor
  4. An address structure
… Answer is b)

16.) rti_info is 

  1. A socket address structure
  2. A buffer
  3. The bitmask array
  4. A char array
… Answer is c)

17.) Two types of ICMP messages are

  1. Error and Query messages
  2. Request and Reply messages
  3. Data and Control messages
  4. Raw and Reply messages
… Answer is a)

18.) Remote applications provided by 4.3 BSD are

  1. rlogin
  2. telnet
  3. rlogin and telnet
  4. TFTP
… Answer is b)

19.) TFTP Error Code 3 identifies —————————- error

  1. File not found
  2. Access violation
  3. Disk full
  4. Illegal TFTP operation
… Answer is c)

20.) RFC 867 is for 

  1. TIME Protocol
  2. Daytime Protocol
  3. Network Time Protocol
  4. 4.3 BSD timed protocol
… Answer is b)

21.The structure or format of data is called ___________
a) Syntax
b) Semantics
c) Struct
d) Formatting

… Answer is a)

22.Communication between a computer or a keyboard involves ______________ transmission.
a) Automatic
b) Half-duplex
c) Full-duplex
d) Simplex

… Answer is d)

23. URL stands for ________
a) unique reference label
b) uniform reference label
c) uniform resource locator
d) unique resource locator

… Answer is c)

24. An alternative to JavaScript on windows platform is _______
a) VBScript
b) ASP.NET
c) JSP
d) PHP

… Answer is a)

25. HTTP is ________ protocol.
a) application layer
b) transport layer
c) network layer
d) data link layer

… Answer is a)

26. In Active mode FTP, the client initiates both the control and data connections.
a) True
b) False

… Answer is b)

27. WiMAX stands for ___________
a) wireless maximum communication
b) worldwide interoperability for microwave access
c) worldwide international standard for microwave access
d) wireless internet maximum communication

… Answer is b)

28. Which kind of Ethernet framing is used for TCP/IP and DEC net?
a) Ethernet 802.3
b) Ethernet 802.2
c) Ethernet II
d) Ethernet SNAP

… Answer is c)

29. The Novell’s implementation of RIP(Routing Information Protocol) updates routing tables every _________ seconds.
a) 60
b) 90
c) 10
d) 30

… Answer is a)

30._____________ allows LAN users to share computer programs and data.
a) Communication server
b) Print server
c) File server
d) Network

… Answer is c)

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In this article, we presented some computer networks interview questions and answers. which helps you in your exams or interview questions.

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