Which of these protocols reside in Layer 3 - Network in the OSI Model?IP and TCPTCP and IPSecIP and IPSecNext ❯
Question
Which of these protocols reside in Layer 3 - Network in the OSI Model?
- IP and TCP
- TCP and IPSec
- IP and IPSec
Next ❯
Solution
To determine which protocols reside in Layer 3 (Network Layer) of the OSI Model, let's analyze the options provided:
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IP (Internet Protocol): This is the primary protocol used for sending data across networks and operates at Layer 3 of the OSI model. It is responsible for addressing and routing packets.
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TCP (Transmission Control Protocol): TCP is a transport layer protocol (Layer 4) that facilitates connection-oriented communication. Therefore, it does not reside in Layer 3.
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IPSec: This protocol is used for securing IP communications by authenticating and encrypting each IP packet in a communication session. While it works closely with IP, it is not a standalone protocol, but it operates at the Network Layer (Layer 3) when applied.
Given this analysis, the correct answer is "IP and IPSec" as both are involved in the Network Layer of the OSI Model.
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