OSI Layers MCQ Questions and Answers for Practice

1. How many layers does OSI Reference Model has?

1. 4
2. 5
3. 6
4. 7

2. The physical layer concerns with

1. bit-by-bit delivery
2. process to process delivery
3. application to application delivery
4. none of the mentioned

3. Which transmission media has the highest transmission speed in a network?

1. coaxial cable
2. twisted pair cable
3. optical fiber
4. electrical cable

4. Bits can be send over guided and unguided media as analog signal by

1. digital modulation
2. amplitude modulation
3. frequency modulation
4. phase modulation

5. The portion of physical layer that interfaces with the media access control sublayer is called

1. physical signalling sublayer
2. physical data sublayer
3. physical address sublayer
4. none of the mentioned

6. physical layer provides

1. mechanical specifications of electrical connectors and cables
2. electrical specification of transmission line signal level
3. specification for IR over optical fiber
4. all of the mentioned

7. In asynchronous serial communication the physical layer provides

1. start and stop signalling
2. flow control
3. both (a) and (b)
4. none of the mentioned

8. The physical layer is responsible for

1. line coding
2. channel coding
3. modulation
4. all of the mentioned

9. The physical layer translates logical communication requests from the ______ into hardware specific operations.

1. data link layer
2. network layer
3. trasnport layer
4. application layer

10. A single channel is shared by multiple signals by

1. analog modulation
2. digital modulation
3. multiplexing
4. none of the mentioned

11. Wireless transmission can be done via

1. radio waves
2. microwaves
3. infrared
4. all of the mentioned

12. The network layer concerns with

1. bits
2. frames
3. packets
4. none of the mentioned

13. Which one of the following is not a function of network layer?

1. routing
2. inter-networking
3. congestion control
4. none of the mentioned

14. The 4 byte IP address consists of

1. network address
2. host address
3. both (a) and (b)
4. none of the mentioned

15. In virtual circuit network each packet contains

1. full source and destination address
2. a short VC number
3. both (a) and (b)
4. none of the mentioned