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

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: (b)

A personal digital assistant (PDA), also known as a palmtop computer, or personal data assistant, is a mobile device that functions as a personal information manager. PDAs are largely considered obsolete with the widespread adoption of smartphones. Nearly all current PDAs have the ability to connect to the Internet.

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)

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

Answer: (d)

A compiler is a computer program that transforms source code written in a programming language into another computer language the target language, often having a binary form known as object code.

Answer: (b)

RAM is not a secondary storage device. Storage consists of storage devices and their media not directly accessible by the Central Processing Unit (CPU).

Secondary storage is all data storage that is not currently in a computer’s primary storage or memory.