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What is data encapsulation?

A.

Browsing history is erased automatically with every session.

Answers
A.

Browsing history is erased automatically with every session.

B.

The protocol of the sending host adds additional data to the packet header.

Answers
B.

The protocol of the sending host adds additional data to the packet header.

C.

Data is encrypted backwards, which makes it unusable.

Answers
C.

Data is encrypted backwards, which makes it unusable.

D.

Multiple hosts can be supported with only a few public IP addresses.

Answers
D.

Multiple hosts can be supported with only a few public IP addresses.

Suggested answer: B

Explanation:

Data encapsulation is a process in networking where the protocol stack of the sending host adds headers (and sometimes trailers) to the data.

Each layer of the OSI or TCP/IP model adds its own header to the data as it passes down the layers, preparing it for transmission over the network.

For example, in the TCP/IP model, data starts at the application layer and is encapsulated at each subsequent layer (Transport, Internet, and Network Access) before being transmitted.

This encapsulation ensures that the data is correctly formatted and routed to its destination, where the headers are stripped off in reverse order by the receiving host.

Networking Fundamentals by Cisco

OSI Model and Data Encapsulation Process

Understanding TCP/IP Encapsulation

asked 07/10/2024
Anand R
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