IT &computer MCQ section 3 MCQ Questions & Answers Detailed Explanation

Answer: (c)

The floppy disk were produced with a capacity of 720 KB, followed by what became the most common format, 1.44 MB. All disks had a rectangular hole which, if obstructed, write-enabled the disk. 1.44 MB disks had another hole which identified them as being of that capacity.

Answer: (c)

Cloud computing comes into focus only when you think about what IT always needs: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software.

Cloud computing encompasses any subscription-based or pay-per-use service that, in real-time over the Internet, extends IT’s existing capabilities.

Answer: (d)

A CT scan stands for Computed Tomography scan. It is also known as a CAT (Computer Axial Tomography) Scan. It is a medical imaging procedure that utilizes computer-processed X-rays to produce tomographic images or 'slices' of specific areas of the body.

Answer: (c)

As per the latest data of International Telecommunications Union, China had the largest number of internet users in the world (721,434,547) as of 30 June, 2016. India comes second with 462,124,989 internet users.

Answer: (a)

FORMAT is an MS-DOS external command.

Answer: (d)

A computer virus is a computer programme that can replicate itself and spread from one computer to another. The term “virus” is also commonly, but erroneously, used to refer to other types of malware, including but not limited to adware and spyware programs that do not have a reproductive ability.

Malware includes computer viruses, computer worms, Trojan horses, most rootkits, spyware, dishonest adware and other malicious or unwanted software, including true viruses.