Multiple Choice Questions & Answers (MCQs) on IOT OSI model

1. OSI stands for __________
a) open system interconnection
b) operating system interface
c) optical service implementation
d) open service Internet
Answer: open system interconnection

2. The number of layers in ISO OSI reference model is __________
a) 4
b) 5
c) 6
d) 7

Answer: 7

3. Which layer is called a port layer in OSI model:
a) Session
b) Application
c) Presentation
d) Transport
Answer: Session

4. Which level is the network layer in the OSI model?
a) Third level
b) Fourth level
c) Second level
d) Fifth layer
Answer: Third level

5. Network layer protocol exits in _________
a) Host
b) Switches
c) Packets
d) Bridges
Answer: Host

6. What are the common protocols associated with the network layer?
a) Address Resolution Protocol
b) Reverse Address Resolution Protocol
c) Internet protocol
d) Neighbour Discovery Protocol
Answer: Internet protocol

7. The network layer responds to request from which layer?
a) Transport layer
b) Data layer
c) Application layer
d) Session layer
Answer: Transport layer

8. The network layer issues request to which layer?
a) Transport layer
b) Data layer
c) Application layer
d) Session layer
Answer: Data layer

9. Data in network layer is transferred in the form of ____________
a) Layers
b) Packets
c) Bytes
d) Bits
Answer: Packets

10. The_________ layer uses data compression yo reduce the number of bits to be transmitted.
a) presentation
b) network
c) data link
d) application
Answer: presentation

11. What are called routers?
a) The devices that operates at session layer
b) The devices that operates at data layer
c) The devices that operates at application layer
d) The devices that operates at network
Answer: The devices that operates at network

12. RIP stands for ________
a) Reduced Information Protocol
b) Routing Internet Protocol
c) Routing Information Protocol
d) Reduced Internet Protocol
Answer: Routing Information Protocol

13. Packets will be transferred in how many types?
a) 5 types
b) 4 types
c) 2 types
d) 3 types
Answer: 3 types

14. DDP stands for _________
a) Datagram Delivery Protocol
b) Device Delivery Protocol
c) Datagram Device Protocol
d) Device Datagram Protocol
Answer: Datagram Delivery Protocol

15. Which address identifies a process on a host?
a) physical address
b) logical address
c) port address
d) specific address
Answer: port address

16. The network layer is considered as the _______ of the network layer.
a) backbone
b) packets
c) bytes
d) bits
Answer: backbone

17. The network layer contains which hardware device?
a) Routers, Bridges
b) Bridges only
c) Bridges and switches
d) Routers, Bridges and Switches
Answer: Routers, Bridges and Switches

18. ICMP stands for __________

a) Internet Coordinate Message Protocol
b) Internet Control Message Protocol
c) Interconnect Control Message Protocol
d) Interconnect Coordinate Message Protocol
Answer: Internet Control Message Protocol

19. Does network layer in TCP/IP and OSI Model are same.
a) True
b) False
Answer: False

20. IP is connectionless.
a) True
b) False
Answer: True