C++ | MCQs

Explanation

r is the carriage return escape sequence, which moves the cursor to the beginning of the current line.

It does not move to the next line, unlike n (newline).

Explanation

In C, 9 and 4 are integers, so 9 / 4 = 2 (integer division, fractional part is discarded).

Then, 2 * 2 = 4

Explanation

The else keyword is used to provide an alternative block of code if the if condition is false.

It works with if to handle two different choices in decision-making.

Explanation

Data refers to raw facts and figures that have not yet been processed.

Once processed, data becomes information.

Explanation

Full Duplex allows data to be sent and received simultaneously, making it the fastest communication mode.

In contrast:

Simplex is one-way only.

Half Duplex is two-way but not simultaneous.

Explanation

An address is an identifiable location in computer memory where data is stored.

Each memory cell has a unique address used to access or modify data.

Explanation

Utility Software: Helps maintain, analyze, and protect the computer (includes antivirus, disk cleanup, etc.)

System Software: Runs the hardware and system (e.g., OS like Windows)

Application Software: End-user programs (e.g., MS Word, Photoshop)

Development Software: Tools for programming (e.g., compilers, IDEs)

Explanation

A current file refers to one that is actively being dealt with or processed in an office.

It remains "current" until action is completed and then moved to closed or recorded status.

Explanation

Marking correspondence as "Urgent" signals that it requires immediate attention and quick action.

This helps to prioritize it over routine items for faster decision-making.

Explanation