IT &computer MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (b)

The polymorphic virus changes each time it is installed to avoid detection by antivirus software. The changes do not affect the virus’ functionality but rather change the virus’ signature.

A virus signature is a pattern that can be used to identify a virus, typically a series of bytes that make up the virus code.

Answer: (a)

Morphing is a special effect in motion pictures and animations that changes (or morphs) one image into another through a seamless transition. Most often it is used to depict one person turning into another through technological means or as part of a fantasy or surreal sequence.

Answer: (c)

The IBM PC XT was the successor of the IBM PC. The XT stands for EXtended Technology and was introduced in early 1983. It had enhanced features: CGA graphic card, hard disk, more memory, and no more tape port. The term PC-XT refers to personal computer extended Technology.

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.

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)

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.