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

Answer: (c)

An Intelligent terminal is A terminal with built-in processing capability, but no local disk or tape storage.

It may use a general-purpose CPU or may have specialized circuitry as part of a distributed intelligence system. Intelligent terminals include memory and a processor to perform special display operations.

Answer: (d)

The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web. HTTP is the protocol to exchange or transfer hypertext.

Answer: (b)

Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands.

Because the depth of the pits is approximately one-quarter to one-sixth of the wavelength of the laser light used to read the disc, the reflected beam's phase is shifted in relation to the incoming beam, causing destructive interference and reducing the reflected beam's intensity. This pattern of changing the intensity of the reflected beam is converted into binary data.

Answer: (c)

A bug in a program is an error.

Answer: (a)

The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is known as piggybacking.

The principal advantage of using piggybacking over having distinct acknowledgement frames is a better use of the available channel bandwidth.

Answer: (b)

The control unit maintains order within the computer system and directs the flow of traffic(operations) and data.

The arithmetic-logic unit (ALU) performs all arithmetic operations (addition, subtraction, multiplication, and division) and logic operations. These two have special-purpose storage called Registers.