Types of Modems:
There are different types of modems available in the market. These modems can be categorized based on various factors such as technology, functionality, and connectivity options. Here are the main types of modems:
1. Cable Modem:
- Uses coaxial cable to connect to the internet.
- Provides high-speed internet access.
- Requires a cable TV connection.
2. DSL Modem:
- Uses telephone lines to connect to the internet.
- Provides high-speed internet access.
- Requires a DSL connection.
3. Dial-Up Modem:
- Uses a standard telephone line to connect to the internet.
- Provides low-speed internet access.
- Requires a dial-up connection.
4. Fiber Optic Modem:
- Uses fiber optic cables to transmit data.
- Provides extremely high-speed internet access.
- Requires a fiber optic connection.
5. Satellite Modem:
- Uses satellite dish to connect to the internet.
- Provides internet access in remote areas.
- Requires a clear line of sight to the satellite.
6. Wireless Modem:
- Uses wireless technology (such as Wi-Fi or cellular network) to connect to the internet.
- Provides internet access without physical connections.
- Requires a wireless signal.
Summary:
In summary, there are six main types of modems: cable modem, DSL modem, dial-up modem, fiber optic modem, satellite modem, and wireless modem. Each type of modem has its own advantages and limitations, and the choice of modem depends on factors such as internet speed requirements, availability of different connection options, and location.

They are 'B'