IT &computer MCQ section 6 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Excel is different from the other three. Internet Explorer, Netscaps and Mozilla are navigation programmes. Microsoft Excel is a spreadsheet application.

Answer: (b)

A multi-user operating system allows multiple users to access a computer system at the same time.

Although frequently associated with multiprogramming, a multiuser operating system does, not imply multiprogramming or multitasking.

Answer: (d)

The most common image file formats, the most important for cameras, printing, scanning, and internet use, are JPG, TIF, PNG, and GIF. In computing, .mdb file-extension is used in certain versions of Microsoft Access databases.

Answer: (a)

the commonly used unit for measuring the speed of data transmission in bits per second abbreviated bps. The baud rate is actually the measure of transitions per second.

A 56 kbps modem actually only changes its output amplitude, phase, and frequency 1200 times a second, but uses amplitude and phase to encode multiple bits into a single state.

Answer: (d)

A programming error is an error which results from bad code in some program involved in producing the erroneous result. But, most of the errors are due to the person using it or giving wrong commands or data to the system. The next most common source is the poorly coded software.

Answer: (b)

The rate at which scanning is repeated in a CRT is called refresh rate.