Dial-up connection and a wireless connection.

Q15. Differentiate between a dial-up connection and a wireless connection.
Ans. A dial-up connection is a temporary connection that uses the public switched telephone network (PSTN) to connect to the Internet. This type of connection is set up between the client’s computer and the ISP server. The dial-up connection is established with the help of a modem (a device that allows the computer to transfer data over a phone line). An Internet connection established through a dial-up connection is available till the time client is connected to the ISP server. Once the client gets disconnected from the ISP server, the client needs to restart the dial-up connection to connect to the Internet again. Therefore, it will need a dedicated line to remain connected to the Internet. On the other hand, a wireless connection refers to a connection that does not use any wires to communicate or transfer information or data between two or more computers (or other devices, such as mobile phones). The distance between the devices connected to each other through a wireless Internet connection does not affectthe rate of data transfer between them.

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