4) How many layers used in the OSI model?
- 5
- 6
- 7
- 8
Correct answer: 3
7
Explanation:
There are 7 layers are used in the OSI model.
- Physical Layer
- Data-Link Layer
- Network Layer
- Transport Layer
- Session Layer
- Presentation Layer
- Application Layer
5) Which layer of the OSI model is responsible for actual physical connections among the network devices?
- Data Link Layer
- Network Layer
- Transport Layer
- Physical Layer
Correct answer: 4
Physical Layer
Explanation:
The physical layer is responsible for actual physical connections among the devices.