Understanding the OSI Model

Question 1

What is the OSI Model?

Answer 1

The Open Systems Interconnection Model is a framework used to describe how data moves across a network.

Question 2

How many layers does the OSI Model have?

Answer 2

The Open Systems Interconnection Model has 7 Layers.

Question 3

What is a good way to remember the OSI Model?

Answer 3

All. People.Seem. To.Need.Data.Processing

Question 4

What are the 7 Layers of the OSI Model?

Answer 4

7. Application
8. Presentation
9. Session
10. Transport
11. Network
12. Data Link
13. Physical

Question 5

What is the Physical Layer?

Answer 5

Layer 1 of the Open Systems Interconnection Model is responsible for transmitting raw data bits over a physical medium.

Question 6

What is the Data Link Layer?

Answer 6

Layer 2 of the Open Systems Interconnection Model is responsible for error detection and correction, physical addressing, media access control, and node-to-node data transferring.

Question 7

What is the Network Layer?

Answer 7

Layer 3 of the Open Systems Interconnection Model is responsible for managing device addressing, identification, and routing packets across multiple networks.

Question 8

Which Layer is known as the Switching Layer?

Answer 8

The Data Link Layer

Question 9

Which Layer is known as the Routing Layer?

Answer 9

The Network Layer.

Question 10

What is the Transport Layer?

Answer 10

Layer 4 of the Open Systems Connection Model is responsible for secure end-t-end data delivery between applications.

Question 11

Which Layer is known as the Post Office Layer?

Answer 11

The Transport Layer.

Question 12

What is the Session Layer?

Answer 12

Layer 5 of the Open Systems Interconnection Model is responsible for starting and stopping communication between one endpoint and another.

Question 13

What is the Presentation Layer?

Answer 13

Layer 6 of the Open Systems Interconnection Model is responsible for translating data formats, data encryption, making data compatible with different systems