What is the name of the missing layer in the Open Systems Interconnection (OSI) model shown below?
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Cybersecurity Fundamentals Specialist Exam - Question 4
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Correct Answer: C
The missing layer in the Open Systems Interconnection (OSI) model is the Transport layer. This layer is responsible for end-to-end communication and error handling, and protocols like TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) operate at this layer. The Transport layer ensures complete data transfer and manages the reliability of a given link through flow control, segmentation/desegmentation, and error control.
Discussion
4 commentsEvan7557
Oct 12, 2023C is the correct Answer
Akye
Nov 4, 2023The correct answer is option C
Agi
Aug 14, 2024C Transport Layer
EltoothOption: C
Mar 26, 2025C - Transport