Question

question 10

at which layer of the osi model does a hub operate?

a. physical layer
b. application layer
c. network layer
d. data link layer

Explanation:

Identify the device function

A network hub is a basic hardware device that connects multiple devices in a local area network (LAN). It broadcasts incoming data packets to all of its ports without inspecting the destination addresses or managing traffic.

Map the device to the OSI model

Because a hub operates purely on electrical signals, bits, and physical cabling connections without analyzing logical addresses (like MAC or IP addresses), it functions entirely at Layer 1 of the Open Systems Interconnection (OSI) model.

Select the matching layer

Layer 1 of the OSI model is the Physical Layer.

Answer:

• A. Physical Layer (Correct answer)
• B. Application Layer
• C. Network Layer
• D. Data Link Layer