computer MCQs - 12th class Chapter 08 Mcqs

1

The C programming language was developed in which year?

A

1969

B

1970

C

1972

D

1980

2

Who developed the C programming language?

A

Ken Thompson

B

Dennis Ritchie

C

Bjarne Stroustrup

D

James Gosling

3

C was developed at which laboratories?

A

Google Labs

B

IBM Watson Labs

C

AT & T Bell Laboratories

D

Microsoft Research

4

C was derived from which earlier programming language?

A

B

C

PASCAL

D

FORTRAN

5

The B language, which provided the basis for C, was developed by whom?

A

Dennis Ritchie

B

Niklaus Wirth

C

Ken Thompson

D

John McCarthy

6

A well-defined set of instructions given to the computer is called a?

A

Computer hardware

B

Computer file

C

Computer program

D

Computer algorithm

7

What does ANSI stand for?

A

American National Software Institute

B

American National Standards Institute

C

Associated National Standards Institute

D

American Nodal Standard Institute

8

What is the name of the Borland International's implementation of a compiler for C?

A

Visual C++

B

GCC

C

Clang

D

Turbo C++

9

What does IDE stand for?

A

Integrated Development Environment

B

Internal Drive Electronics

C

Initial Design Element

D

Intelligent Development Entity

10

In the Turbo C++ IDE, what is the key combination to open the File menu?

A

Alt+F

B

Ctrl+F

C

Shift+F

D

F1

11

Which option in the Turbo C++ IDE is used to create a new file?

A

File|Open

B

File|New

C

Edit|New

D

Project|New

12

What key is the shortcut for saving a program in Turbo C++?

A

F1

B

F2

C

F3

D

F5

13

What is the default extension assigned by Turbo C++ when saving a file?

A

.c

B

.h

C

.obj

D

.cpp

14

For a pure C program, what extension is suggested to be used when saving?

A

.cpp

B

.c

C

.h

D

.bak

15

The process of translating a source program into an object program is called?

A

Linking

B

Executing

C

Debugging

D

Compiling

16

What is the key combination to compile a program in Turbo C++?

A

Alt+F9

B

Ctrl+F9

C

Alt+F5

D

F2

17

A program written in a high-level language like C is called a?

A

Object Program

B

Executable Program

C

Source Program

D

Machine Program

18

A C compiler translates a source program into a file with what extension?

A

.exe

B

.bak

C

.obj

D

.c

19

Which program combines the object program with other necessary library files?

A

Compiler

B

Loader

C

Linker

D

Debugger

20

The linker produces a final executable file with which extension?

A

.obj

B

.lib

C

.exe

D

.c

21

Which program places the executable file into memory for execution?

A

Linker

B

Editor

C

Compiler

D

Loader

22

What is the key combination to execute (run) a program in Turbo C++?

A

Alt+F9

B

Ctrl+F9

C

Alt+F5

D

F9

23

To view the program's output screen in Turbo C++, what is the key combination?

A

Alt+F5

B

Ctrl+F5

C

Shift+F5

D

F10

24

Which menu is used to set the output and source directories in Turbo C++?

A

File

B

Edit

C

Debug

D

Options

25

Commands that give instructions to the C preprocessor are called?

A

Functions

B

Statements

C

Preprocessor Directives

D

Comments

26

A preprocessor directive always begins with which symbol?

A

&

B

$

C

/

D

#

27

The #include <stdio.h> directive gives the program access to which functions?

A

Standard mathematical functions

B

Standard input and output functions

C

String manipulation functions

D

Memory allocation functions

28

Which directive is used to define a constant macro?

A

#include

B

#define

C

#main

D

#const

29

In a C program, where does the execution begin?

A

preprocessor directive

B

first line of the file

C

main function

D

last line of the file

30

What encloses the body of a function in C?

A

Parentheses ()

B

Square Brackets []

C

Braces {}

D

Angle Brackets <>

31

The 'void' keyword before 'main' indicates that the function returns what?

A

An integer

B

A character

C

Nothing

D

A boolean value

32

What are the braces {} that indicate the beginning and end of a function body called?

A

Terminators

B

Separators

C

Delimiters

D

Brackets

33

Every statement in a C program must terminate with what?

A

A period (.)

B

A comma (,)

C

A colon (:)

D

A semicolon (;)

34

What is the process of finding and removing errors (bugs) from a program called?

A

Compiling

B

Linking

C

Executing

D

Debugging

35

Which type of error occurs when the program violates grammar rules of the C language?

A

Runtime Error

B

Logical Error

C

Syntax Error

D

System Error

36

Which type of error is detected by the compiler?

A

Syntax Error

B

Runtime Error

C

Logical Error

D

Human Error

37

Directing the computer to perform an illegal operation, like dividing by zero, causes what type of error?

A

Syntax Error

B

Logical Error

C

Compilation Error

D

Runtime Error

38

Which type of error occurs when a program follows a faulty algorithm?

A

Syntax Error

B

Runtime Error

C

Logical Error

D

Linker Error

39

Which type of error is the most difficult to detect?

A

Syntax Error

B

Runtime Error

C

Logical Error

D

Compiler Error

40

Which of the following is a low-level language?

A

C++

B

Java

C

Assembly Language

D

PASCAL

41

What is the native language of the computer, consisting of strings of 0s and 1s?

A

Assembly Language

B

Machine Language

C

High-Level Language

D

C Language

42

In assembly language, English-like words that replace machine language instructions are called?

A

Commands

B

Keywords

C

Mnemonics

D

Variables

43

What is the name for the set of grammar rules for writing programs in a high-level language?

A

Protocol

B

Syntax

C

Algorithm

D

Structure

44

High-level languages provide machine independence. What does this mean?

A

Programs run only on one machine

B

Programs need a specific processor

C

Programs can be executed on many different types of computers

D

Programs do not need a compiler

45

In the 'Hello World' example, which function was used to display output on the screen?

A

scanf

B

main

C

include

D

printf

46

The header file `math.h` contains information about what?

A

Input/Output functions

B

Common mathematical functions

C

File handling functions

D

Debugging tools

47

Which file is produced by the linker?

A

Source file

B

Object file

C

Executable file

D

Header file

48

The short-key for compiling a program is?

A

Ctrl+F9

B

Alt+F5

C

Alt+F9

D

F2

49

The B language was developed in which period?

A

1972

B

1980-81

C

1969-70

D

1990

50

What does a loader do?

A

It links library files

B

It places the executable file in memory

C

It translates the source code

D

It finds and removes errors