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

Answer: (d)

Data integrity is the maintenance of, and the assurance of the accuracy and consistency of, data over its entire life-cycle. It is a critical aspect to the design, implementation and usage of any system which stores, processes, or retrieves data. Data integrity is the opposite of data corruption, which is a form of data loss.

Answer: (c)

There are two specific heats of gases- Specific Heat at Constant Pressure (Cp ) and Specific Heat at Constant Volume (Cv ).

Heat supplied at constant pressure is used up in two ways:

1. for doing work in expansion and
2. for raising the temperature by 1°C,

while at constant volume heat supplied is used only for the rise of temperature. Therefore, Cp is always greater than Cv.

They are related as Cp -Cv = R/J. This relation is called Mayer’s Relation.

Answer: (a)

Loader is a program that places programs into memory and prepares them for execution.

Answer: (d)

EEPROM (Electrically Erasable Programmable Read-Only Memory) is a special type of non-volatile memory used in computers to store small amounts of data that must be saved when power is removed, e.g., calibration tables or device configuration.

Answer: (d)

The Science and Technology Entrepreneurs’ Park (STEP) was established at IIT Kharagpur in Dec. 1986 with financial support from DST New Delhi, DST West Bengal, IDBI, IFCI, ICICI.

Approval was accorded by DST on Aug.14, 1987. the role of training, Testing and Calibration and Technology development has been assigned to it.

Answer: (c)

In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. A flip-flop store a single bit (binary digit) of data; one of its two states represents a “one” and the other represents a “zero”.

Such data storage can be used for storage of state, and such a circuit is described as sequential logic. When used in a finite-state machine, the output and next state depend not only on its current input but also on its current state.