Understanding Hardware Component Functions

This question requires matching specific computer hardware components listed in LIST-I with their primary functions detailed in LIST-II. Let's break down the function of each hardware item:

A. Modem Functionality Explained

A Modem, which stands for Modulator-Demodulator, is crucial for connecting to networks like the internet, especially over traditional telephone lines or cable networks. Its main job is the Conversion of analog and digital signal (IV). Computers work with digital signals, but networks often transmit analog signals. The modem translates between these two formats.

B. Router Role in Networking

A Router is a networking device that connects multiple networks together (like your home network to the internet). It directs data packets to their destination by using logical addressing information, specifically the IP address (III). Routers make decisions on where to forward the data based on these addresses to ensure efficient data delivery.

C. NIC and Physical Addresses

The NIC, or Network Interface Card, is the hardware component within a computer that connects it to a network medium (like an Ethernet cable or Wi-Fi). Each NIC has a globally unique identifier called a Physical address (II), also known as a MAC (Media Access Control) address. This address is used for communication within the local network segment.

D. Repeater Signal Regeneration

A Repeater is a simpler network device used to extend the reach of a network signal. As signals travel through cables, they can weaken (attenuate). A repeater receives these weakened signals, cleans them up, and retransmits them at a higher power level, effectively Regenerate signals (I) to cover longer distances.

Correct Hardware Function Matches

Based on the functions explained above, the correct matches are:

• A. Modem matches with IV. Conversion of analog and digital signal
• B. Router matches with III. IP address
• C. NIC matches with II. Physical address
• D. Repeater matches with I. Regenerate signals

Therefore, the correct option is the one that lists these matches: A-IV, B-III, C-II, D-I.