MCQ on OSI Model in networking

 MCQ

OSI MODEL

Q.1) The Internet model consist of -----------  layer 

Ans ...            Five.

Q.2)  which of the following is an application layer service ..

A) mail system

B) File Transfer

C) Remote Log In 

D) All of them

Ans .......     D

Q.3) When a host on n/w A send a message to the host on n/w B which address does the router look at ?

Ans ...       Logical

Q.4 )   IPV6 has ........  bit address ?

Ans ........     128

Q.5) ICMPv6   includes .............

Ans .........   IGMP     and ARP

Q.6)  ............. is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.

Ans ..........     UDP

Q.7)  The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN.

Ans .....     physical

Q.8)   Ethernet uses a ______ physical address that is imprinted on the network interface card (NIC).

Ans .....      6 byte

Q.9)   A port address in TCP/IP is ______ bits long.

Ans ....   16

Q.10)  The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model.

Ans ...........   Application

 

Q.11)   The ____ address uniquely defines a host on the Internet.

Ans ......    IP

Q.12)  The_____ address identifies a process on a host. 

Ans .....    port

Q.13)  Routers operate at which layer of the OSI Model?

Ans ...  Network

Q.14) Which of the following operates at the Presentation layer?

Ans .....  MIDI & JPEG

Q.15)   Which of the following are Transport layer protocols?

Ans .....     TCP  and UDP

Q.16)  Flow Control take place at which layer ?

Ans ....   Transport

Q.17)  Repeaters & hubs operate at whaich layer?

Ans .....    Physical 

Q.18)  Bit synchronization is handled at which layer of the OSI Model?

Ans ..... Session

Q.19)   Bridges operate at which layer of the OSI Model?

Ans .........Network

Q.20) What are the sublayers of the Data Link layer?

Ans ....   MAC   and LLC

Q.21)  Which layer is responsible for packet sequencing, acknowledgements, & requests for retransmission?

Ans ....   Transport

Q.22) Which layer translates between physical & logical addresses?

Ans ....   Network