JNCIA-Junos: Juniper Networks Certified Associate – Junos (2024) — Question 41

Which layer of the OSI model contains the IP address information?

Answer options

• A. Layer 2
• B. Layer 4
• C. Layer 1
• D. Layer 3

Correct answer: D

Explanation

Layer 3 of the OSI model, also known as the Network layer, is responsible for addressing and routing packets, which includes IP address information. Layers 1, 2, and 4 do not handle IP addressing; Layer 1 deals with physical transmission, Layer 2 is for data link protocols, and Layer 4 manages transport layer protocols.