Computer Networks MCQ



Question 1 : Repeater and Hub operates at which layer?

  1. DLL
  2. Physical
  3. Network
  4. Transport
    

Question 2 : Which ARQ mechanism deals with the transmission of only damaged or lost frames despite the other multiple frames by increasing the efficiency & its utility in noisy channels?

  1. Stop-and-Wait ARQ
  2. Elementary ARQ
  3. Go-Back-N ARQ
  4. Selective Repeat ARQ
    

Question 3 : Transport layer aggregates data from different applications into a single stream before passing it to ____________

  1. network layer
  2. datalink layer
  3. physical layer
  4. application layer
    

Question 4 : _____ messages can be sent by SNMP agent

  1. Get request
  2. Set request
  3. Trap request
  4. Response request
    

Question 5 : Bits are packaged into frames at which layer of the OSI model?

  1. Transport
  2. DLL
  3. Network
  4. Physical
    

Question 6 : In IPv4 protocol, each datagram is handled _______

  1. independently
  2. dependently
  3. priority basis
  4. systematically
    

Question 7 : Which one of the following protocol delivers/stores mail to reciever server?

  1. Telnet
  2. TCP
  3. HTTP
  4. SMTP
    

Question 8 : First address in a block is used as network address that represents the ________

  1. Class
  2. Entity
  3. Organization
  4. Code
    

Question 9 : What is the main function of Transport layer?

  1. Provide encryption
  2. Provide end to end delivery
  3. Send data physically
  4. Data formatting
    

Question 10 : Which of this is not a guided media?

  1. Fiber optical cable
  2. Coaxial cable
  3. Wireless LAN
  4. Copper wire
    

Question 11 : CRC is

  1. Cyclic roundtrip checksum
  2. circular redundancy check
  3. cyclic redundancy code
  4. circular roundtrip checksum
    

Question 12 : Coaxial Cable

  1. Capability to carry Multiple signals
  2. Can Carry only Limited Signals
  3. Suitable for Wireless
  4. Communication at the speed of Light
    

Question 13 : Header of datagram in IPv4 has ______

  1. 0 to 20 bytes
  2. 20 to 40 bytes
  3. 20 to 60 bytes
  4. 20 to 80 bytes
    

Question 14 : The process by which a client configured to use DHCP attempts to get network configuration information is known as _________________.

  1. DHCP Offer
  2. DHCP REQUEST
  3. DHCP Discovery
  4. DHCP Acknowledgement
    

Question 15 : SNMP stands for

  1. Simple Network Management Protocol
  2. Simple Network Module Protocol
  3. Steady Network Management Protocol
  4. Steady Network Module Protocol
    

Question 16 : Which field helps to check rearrangement of the fragments?

  1. Offset
  2. DF
  3. MF
  4. Identifier
    

Question 17 : Stop-and-wait flow control method is same as the sliding window method with a window size of _______

  1. 0
  2. 1
  3. 2
  4. 3
    

Question 18 : Coaxial cable consists of _______ concentric copper conductors

  1. 1
  2. 2
  3. 3
  4. 4
    

Question 19 : Which is a application layer protocol?

  1. ICMP
  2. HTTP
  3. UDP
  4. TCP
    

Question 20 : The data link layer takes the packets from _________ and encapsulates them into frames for transmission.

  1. physical layer
  2. session layer
  3. transport layer
  4. network layer
    

Question 21 : Which layer handles the formatting of application data so that it will be readable by the destination system?

  1. DLL
  2. Physical
  3. Presentation
  4. Transport
    

Question 22 : Which one of the following uses UDP as the transport protocol?

  1. HTTP
  2. Telnet
  3. DNS
  4. SMTP
    

Question 23 : _____ is used to create a collection of named object, their types and relationships to each other

  1. SMI
  2. MIB
  3. HTTP
  4. SMTP
    

Question 24 : The frames issued by the secondary station of HDLC known as___

  1. Response
  2. Command
  3. Request
  4. Link
    

Question 25 : Which constructor of Datagram Socket class is used to create a datagram socket and binds it with the given Port Number?

  1. Datagram Socket(int port)
  2. Datagram Socket()
  3. Datagram Socket(int port, Int Address address)
  4. Datagram Socket(int address)
    
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