Computer Networking Interview Questions Answers

21. Which device determines the best path for data transmission?

  • A) Repeater
  • B) Hub
  • C) Router
  • D) Switch
Answer: Router

22. Which virtual terminal protocol enables remote login over networks?

  • A) FTP
  • B) SMTP
  • C) HTTP
  • D) Telnet
Answer: Telnet

23. Sending multiple information signals over a single link is known as

  • A) Encoding
  • B) Modulation
  • C) Multiplexing
  • D) Compression
Answer: Multiplexing

24. Which MS-DOS command displays all shares on a computer?

  • A) net share
  • B) net view
  • C) net use
  • D) net config
Answer: net share

25. A MAC address is a _______ byte hexadecimal number

  • A) 4 byte
  • B) 8 byte
  • C) 12 byte
  • D) 16 byte
Answer: 12 byte

26. Which is a Class C subnet mask?

  • A) 255.0.0.0
  • B) 255.255.0.0
  • C) 255.255.255.0
  • D) 255.255.255.255
Answer: 255.255.255.0

27. Which protocol is used by the Ping command to send echo request packets?

  • A) TCP
  • B) UDP
  • C) ICMP
  • D) ARP
Answer: ICMP

28. Which is a connection-oriented protocol?

  • A) UDP
  • B) TCP
  • C) IP
  • D) IGMP
Answer: TCP

29. The IPv4 addressing system is divided into how many classes?

  • A) 3 classes
  • B) 4 classes
  • C) 6 classes
  • D) 5 classes
Answer: 5 classes

30. In which OSI model layer do TCP and UDP operate?

  • A) Transport layer
  • B) Network layer
  • C) Application layer
  • D) Data link layer
Answer: Transport layer
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