Explanation

A fault in a computer program that prevents it from working correctly is known as a bug.

This term refers to an error, flaw, or defect in the program's source code

That causes it to produce incorrect or unexpected results or behave in unintended ways. 

Explanation

A keyboard is a physical input device, so it is considered hardware.

It allows the user to interact with the computer by typing commands or data.

Explanation

Explanation

MS-Word uses Visual Basic for Applications (VBA)

To create, edit, and run macros.

It is an event-driven programming language integrated into Microsoft Office,

Older Versions: Previously used a language called WordBasic.

Last updated 15-feb-2026

Explanation

• Fiber optic technology uses cables made of thin strands of glass or plastic fibers to transmit data as light signals.
• It providing high-speed and high-capacity communication.

Explanation

The valid output statement in C language among the given options is printf("Hello");.

In C programming, the printf() function is the standard library function used to display formatted output on the console.

It is part of the stdio.h header file, which needs to be included in your C program using #include <stdio.h>.

Options A, B, and C (display(), output(), print()) are not standard C library functions for outputting text to the console.

Explanation

The control bus is a crucial component of a computer system that communicates with other elements, such as the CPU, memory, and input/output devices.

Its primary function is to transmit control signals.

Explanation

In Flutter, the Scaffold() widget is typically used within the build() method of a StatefulWidget or StatelessWidget.

More specifically, it serves as the root widget for most screens in a Flutter application, providing the basic layout structure for Material Design. 

Explanation

The data dictionary is a part of a DBMS that stores metadata — details like table names, field names, data types, constraints, and relationships.

It helps the system manage and understand the structure of the database.

Explanation

A passive topology means that devices on the network simply listen for signals and do not actively amplify or forward the signal along the network.

The Bus topology is a classic example of this.

Where data is transmitted directly on the shared cable without any intermediary device actively boosting the signal