CompTIA
N10-005 · Question #890
N10-005 Question #890: Real Exam Question with Answer & Explanation
The correct answer is C: Network. IP addresses are a Layer 3 (Network layer) construct, encapsulated into packets at that layer for routing between networks.
Question
An IP address is encapsulated at which of the following layers of the OSI model?
Options
- ATransport
- BData link
- CNetwork
- DApplication
Explanation
IP addresses are a Layer 3 (Network layer) construct, encapsulated into packets at that layer for routing between networks.
Common mistakes.
- A. The Transport layer (Layer 4) encapsulates data into segments using port numbers (TCP/UDP), not IP addresses.
- B. The Data Link layer (Layer 2) encapsulates data into frames using MAC addresses, not IP addresses.
- D. The Application layer (Layer 7) formats user data for applications and does not handle IP address encapsulation.
Concept tested. IP address encapsulation at OSI Network layer
Reference. https://learn.microsoft.com/en-us/windows-server/networking/technologies/ipam/ipam-top
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