IT &computer MCQ section 4 MCQ Questions & Answers Detailed Explanation

Answer: (b)

In multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.

Systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task.

Answer: (a)

Trojan Horse is a hallow wooden horse.

Answer: (b)

The byte is a unit of digital information that most commonly consists of eight bits. Computer storage is usually measured in byte multiples. For example, an 820 MB hard drive holds a nominal 820 million bytes - or megabytes - of data.

Answer: (d)

Turn off, Log off and Shut Down are commands used to switch off the computer.

Answer: (a)

Modem allows computers to transfer data using a telephone line.

Answer: (a)

Packet switching is the dividing of messages into packets before they are sent, transmitting each packet individually, and then reassembling them into the original message once all of them have arrived at the intended destination.

Packets are the fundamental unit of information transport on the internet that uses the datagram packet switching method. Most modern Wide Area Network protocols, including TCP/IP, are based on packet-switching technologies.