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CISSP · Question #296
CISSP Question #296: Real Exam Question with Answer & Explanation
The correct answer is C: Network and Session. Routers operate at the Network Layer (Layer 3), where they forward packets based on IP addresses. They do not interact directly with the Session Layer (Layer 5).
Submitted by chen.hong· Mar 5, 2026Communication and Network Security
Question
Between which pair of Open System Interconnection (OSI) Reference Model layers are routers used as a communications device?
Options
- ATransport and Session
- BData-Link and Transport
- CNetwork and Session
- DPhysical and Data-Link
Explanation
Routers operate at the Network Layer (Layer 3), where they forward packets based on IP addresses. They do not interact directly with the Session Layer (Layer 5).
Topics
#OSI model#routers#network layer#communication devices
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