CompTIA Network+ OSI Model Practice Questions: Network Hardware

6 free, exam-style CompTIA Network+ OSI Model (N10-009) practice questions covering Network Hardware. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.

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Q1. Which of the devices listed below is often referred to as a multilayer switch?

Explanation: Routers (and Layer 3 switches) operate at the Network Layer, and modern switches that perform routing functions are often called multilayer switches.

Q2. In the OSI reference model, a NIC resides at the:

Explanation: A Network Interface Card (NIC) operates primarily at the Data Link Layer (Layer 2) for MAC addressing, though its physical interface is Layer 1.

Q3. Which of the following devices resides at the Network Layer of the OSI model?

Explanation: Routers operate at Layer 3 (Network Layer) to route packets based on IP addresses.

Q4. Which device primarily operates at OSI Layer 2 when forwarding frames?

Explanation: Switches forward Ethernet frames using Layer 2 MAC address tables.

Q5. Which device primarily operates at OSI Layer 3 when forwarding traffic between networks?

Explanation: Routers use Layer 3 logical addressing to forward packets between networks.

Q6. Which OSI layer is most directly associated with repeaters and hubs?

Explanation: Repeaters and hubs operate at Layer 1 by regenerating or repeating signals.

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