WGU Network and Security Foundation Exam - Topic 1 Question 13 Discussion

Actual exam question for WGU's Network and Security Foundation exam

Question #: 13
Topic #: 1

[All Network and Security Foundation Questions]

Which layer of the OSI model includes the TCP?

AApplication

BTransport

CSession

DNetwork

Show Suggested Answer

Suggested Answer: B

The Transport layer (Layer 4 of the OSI model) includes the Transmission Control Protocol (TCP), which provides reliable, connection-oriented communication. TCP ensures error-checking, sequencing, and retransmission of lost packets.

Application layer deals with end-user protocols like HTTP and FTP.

Session layer manages communication sessions but not transport protocols.

Network layer focuses on IP addressing and routing, not transport mechanisms.

by Nikita at Jun 19, 2026, 10:28 AM

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Shenika

I’m pretty sure it’s the Transport layer, but I should double-check my notes just in case.

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Kerry

5 days ago

I’m a bit confused; I thought TCP might be in the Session layer, but that doesn’t seem right now.

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Ezekiel

10 days ago

I remember practicing a question like this, and I believe the Transport layer is where TCP operates.

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Bulah

15 days ago

I think TCP is part of the Transport layer, but I’m not 100% sure.

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