Question

Match List-I with List-II. List-I: A. Modem, B. Ethernet card, C. Repeater, D. Router. List-II: I. An analog device that regenerates the signals on the cables to which it is connected. II. A device used for conversion between electric signals and digital bits. III. A network device that can receive the data, analyse it and transmit it to other networks. IV. A network adaptor used to set up a wired network.

• A. A-II, B-IV, C-I, D-III
• B. A-II, B-IV, C-III, D-I
• C. A-IV, B-II, C-III, D-I
• D. A-III, B-I, C-IV, D-II

Hint:

Modem converts signals, Ethernet card connects to wired network, repeater regenerates signals, and router forwards data between networks.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The objective is to map various network devices to their core functions in network communication.

Step 2: Detailed Explanation:
Let us match each network component with its description:

• Modem (A): Short for Modulator-Demodulator. It is an hardware component that converts computer-generated digital signals into analog signals (for telephone/cable lines) and vice-versa, i.e., conversion between electrical/analog waves and digital bits. This matches with II.

• Ethernet card (B): Also known as a Network Interface Card (NIC), it is an essential wired hardware network adapter used to establish a physical connection to a local area network (LAN). This matches with IV.

• Repeater (C): A physical-layer device designed to regenerate weakened electrical or optical signals due to attenuation over long-distance cable runs. This matches with I.

• Router (D): An intelligent network layer device that analyses packets, determines optimal paths, and forwards data packets across interconnected networks. This matches with III.

Step 3: Final Answer:
The matching is A-II, B-IV, C-I, D-III, which represents option (A).