Technologies | MCQs

Explanation

A Firewall is used in a computer network to protect a server from unauthorized access and potential damage by those who log in.

It monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Explanation

LiFi (Light Fidelity) uses light waves, typically from LED lights, to transmit data at high speeds.

It offers faster data transfer rates compared to traditional Wi-Fi due to the high frequency of light waves.

Explanation

Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer.

Explanation

Bluetooth is a high-speed, low-power microwave wireless link technology, designed to connect phones, laptops, PDAs and other portable equipment together with little or no work by the user.

Explanation

• Sound card also known as an Audio Card is an internal expansion card facilitates the input and output of audio signals to and from computer.

• A sound card is an internal expansion card that provides input and output of audio signals to and from a computer under the control of computer programs.

Explanation

•  USB is a serial part which provides a fast serial transmission between devices and computers.
• USB stands for: Universal Serial Bus