IT &computer MCQ section 3 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (c)

A bug in a program is an error.

Answer: (d)

Memory management provides ways to dynamically allocate portions of memory to programs at their request, and free it for reuse when no longer needed.

It enables the allocation of additional memory space or release of unwanted space at run time for optimizing the use of storage space. It provides flexibility in adding, deleting or rearranging data items at run time.

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.