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Question 17 - CCST-Networking discussion

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During the data encapsulation process, which OSI layer adds a header that contains MAC addressing information and a trailer used for error checking?

A.

Network

Answers
A.

Network

B.

Transport

Answers
B.

Transport

C.

Data Link

Answers
C.

Data Link

D.

Session

Answers
D.

Session

Suggested answer: C

Explanation:

During the data encapsulation process, the Data Link layer of the OSI model is responsible for adding a header that contains MAC addressing information and a trailer used for error checking. The header typically includes the source and destination MAC addresses, while the trailer contains a Frame Check Sequence (FCS) which is used for error detection1.

The Data Link layer ensures that messages are delivered to the proper device on a LAN using hardware addresses and translates messages from the Network layer into bits for the Physical layer to transmit. It also controls how data is placed onto the medium and is received from the medium through the physical hardware.

The OSI Model -- The 7 Layers of Networking Explained in Plain English

OSI Model - Network Direction

Which layer adds both header and trailer to the data?

What is OSI Model | 7 Layers Explained - GeeksforGeeks

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asked 11/10/2024
hotthefish shark
35 questions
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