IT &computer MCQ section 4 MCQ Questions & Answers Detailed Explanation

Answer: (d)

In MS Word, multiple words, lines or paragraphs can be selected by using Ctrl+C keys.

Answer: (d)

MMX is a single instruction, multiple data (SIMD) instruction set designed by Intel, introduced in 1996 with their P5-based Pentium line of microprocessors, designated as "Pentium with MMX Technology".

It developed out of a similar unit introduced on the Intel i860, and earlier the Intel i750 video pixel processor.

Answer: (c)

Network congestion in data networking and queueing theory is the reduced quality of service that occurs when a network node is carrying more data than it can handle.

Typical effects include queueing delay, packet loss or the blocking of new connections. Congestion occurs when bandwidth is insufficient and network data traffic exceeds capacity.

Answer: (a)

Trojan Horse is a hallow wooden horse.

Answer: (b)

In multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user.

Systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task.

Answer: (c)

ROM stands for Read-Only Memory. It is a type of computer memory on which data has been prerecorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read.

Unlike main memory (RAM), ROM retains its contents even when the computer is turned off. ROM is referred to as nonvolatile, whereas RAM is volatile.