IT &computer MCQ section 5 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (a)

The modem is an external device or internal electronic circuitry used to transmit and receive digital data over a communications line normally used for analogue signals. A modem attached to a computer converts digital data to an analogue signal that it uses to modulate a carrier frequency.

This frequency is transmitted over a line, frequently as an audio signal over a telecommunications line, to another modem that converts it back into a copy of the original data.

Answer: (a)

After a virus worm enters a computer system, the operating system (OS) creates a single thread for the worm’s execution. Next, the worm spawns or creates another process that is an exact duplicate of the original process. In other words, the worm makes an exact duplicate of itself within the computer’s memory.

The worm continues to duplicate itself each time the OS manages the worm’s process till it paralyzes the OS completely and forces it to shut down.

Answer: (c)

Secondary storage, sometimes called auxiliary storage, is all data storage that is not currently in a computer's primary storage or memory.

In a personal computer, secondary storage typically consists of storage on the hard disk and on any removable media, if present, such as a CD or DVD, flash memory, floppy disks, magnetic tape, paper tape, punched cards, standalone RAM disks, and Iomega Zip drives.

Answer: (b)

WikiLeaks is an international, online, self-described not-for-profit organisation publishing submissions of secret information, news leaks, and classified media from anonymous news sources and whistleblowers.

Its website, launched in 2006 under the Sunshine Press organisation, claimed a database of more than 1.2 million documents within a year of its launch.

Julian Assange, an Australian Internet activist, is generally described as its founder, editor-in-chief, and director. it is based in the USA.

Answer: (c)

Desktop publishing software (abbreviated DTP) is the creation of printed materials using page layout on a personal computer. When used skillfully, desktop publishing software can produce printed literature with attractive layouts and typographic quality comparable to traditional typography and printing.