Which of the following layers of the OSI model is responsible for stripping the TCP port information before sending the packet up to the next layer?

The correct answer is C. 4. TCP port numbers are a Layer 4 (Transport layer) construct. As data travels up the OSI model, each layer is responsible for processing and stripping its own header information. When a segment arrives at Layer 4, the Transport layer reads and removes the TCP/UDP header (which…

Networking concepts

Question

Options

How the community answered

(61 responses)

A
3% (2)
B
5% (3)
C
90% (55)
D
2% (1)

Explanation

TCP port numbers are a Layer 4 (Transport layer) construct. As data travels up the OSI model, each layer is responsible for processing and stripping its own header information. When a segment arrives at Layer 4, the Transport layer reads and removes the TCP/UDP header (which contains source and destination port numbers) before passing the payload up to Layer 5 (Session layer). Layer 2 strips MAC addresses, Layer 3 strips IP addresses, and Layer 4 strips port information - so the correct answer is C (Layer 4).

Topics

#OSI model#Transport layer#TCP#port

Community Discussion

No community discussion yet for this question.

Full N10-005 Practice