Question

Which of the following is the correct order of decapsulation?

A) Application Layer -> Transport Layer ->Network Layer -> Data Link Layer
B) Transport Layer -> Application Layer ->Network Layer -> Data Link Layer
C) Data Link Layer -> Application Layer ->Network Layer -> Transport Layer
D) Data Link Layer -> Network Layer -> Transport Layer -> Application Layer

Answer 1

The correct order of decapsulation is Data Link Layer -> Network Layer -> Transport Layer -> Application Layer. The correct answer is option D) Data Link Layer -> Network Layer -> Transport Layer -> Application Layer.

Step-by-step explanation:

The correct order of decapsulation is Data Link Layer -> Network Layer -> Transport Layer -> Application Layer. This means that when a message is received, it goes through each layer of the protocol stack in reverse order to extract the data and deliver it to the relevant application.

For example, let's say you are using a web browser to access a website. The data will first be received at the Data Link Layer, where the physical transmission of bits happens. Then, it will move up to the Network Layer, where IP addresses are used to route the data across different networks. Next, it will reach the Transport Layer, which is responsible for breaking the data into packets and ensuring reliable delivery. Finally, it will reach the Application Layer, where the data is converted into a format that the web browser can understand and display to you. So, the correct answer is option D) Data Link Layer -> Network Layer -> Transport Layer -> Application Layer.