C Programming Multiple Choice Quiz

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Questions and Answers

Who is recognized as the developer of the C language?

Peter Norton

Ken Thompson

Dennis Richie (correct)

Bill Gates

In which year was the C programming language originally developed?

1976

1970

1972 (correct)

1980

What level of programming language is C considered to be?

High level

Middle level (correct)

Machine level

Low level

Which symbol is used to indicate a pre-processor statement in C?

<h1></h1> Signup and view all the answers

Which data type is considered a scalar data type in C?

Float Signup and view all the answers

What is the valid range of the 'int' data type in C?

-32768 to +32767 Signup and view all the answers

Which escape sequence character is used as a line terminator in C?

\n Signup and view all the answers

Character constants in C should be enclosed within which type of quotes?

Single Quotes Signup and view all the answers

What is the maximum size of a 'double' variable?

8 bytes Signup and view all the answers

How much memory does the declaration of 'float a; double b;' occupy?

10 bytes Signup and view all the answers

Which of the following expressions correctly demonstrates a compounded assignment statement?

a += 10 Signup and view all the answers

What operation does the '&&' operator perform?

Logical comparison Signup and view all the answers

Which operator is used for bitwise AND?

& Signup and view all the answers

What symbol represents the equality operator?

== Signup and view all the answers

What does operator precedence determine?

Which operator is evaluated first Signup and view all the answers

What does integer division result in?

Truncating the fractional part Signup and view all the answers

What does 'a += 4' mean?

a = a + 4 Signup and view all the answers

Which statement about C Library functions is correct?

C Library functions provide I/O facilities Signup and view all the answers

Which pair of functions is used for single character I/O?

getchar() and putchar() Signup and view all the answers

What value does printf() return when an error occurs?

Negative value Signup and view all the answers

What does an ampersand in scanf() before a variable name denote?

Address Signup and view all the answers

Which option correctly defines symbolic constants?

#define Signup and view all the answers

Which header file is essential for using the strcmp() function?

string.h Signup and view all the answers

Which option represents the null character?

\0 Signup and view all the answers

How many keywords are available in C?

34 Signup and view all the answers

What represents a character in the C language?

a character Signup and view all the answers

What is the maximum number of elements in the declaration 'int arr;'?

32 Signup and view all the answers

Which of the following statements will not terminate with a semicolon?

if (x > 0) Signup and view all the answers

Which of the following is an unconditional control structure?

goto Signup and view all the answers

What will be the output of the printf(“%.2f ”,17.23478)?

17.235 Signup and view all the answers

Which of the following options represents the correct way to declare a pointer?

int *ptr; Signup and view all the answers

The number of arithmetic operators in C language is:

4 Signup and view all the answers

What will be the value of 'x' after executing the statement 'x=y+z' where 'y=10' and 'z' is a character with value 'a'?

107 Signup and view all the answers

What will be the output of the given C program that includes multiple assignment operations?

91 Signup and view all the answers

What will the output be for the provided switch-case structure when 'a=7' and 'b=5'?

7 Signup and view all the answers

Which of the following correctly describes the types of operators mentioned?

Binary, Unary Signup and view all the answers

What does 'INT' refer to in terms of value storage and size?

int, 16 Signup and view all the answers

Which statement correctly completes the sentence about variable names?

Variable consists of letters, numbers and underscores. You can’t use keywords. Signup and view all the answers

What will be the value of 'str1' after executing the C program using string concatenation and reversal?

India is my Country!! Signup and view all the answers

What does a while statement expect since the condition is not fully shown?

A logical value. Signup and view all the answers

Study Notes

C Programming Multiple Choice Questions

The developer of the C programming language is Dennis Ritchie.
C was developed in 1972.
C is a middle-level programming language.
C is available for all operating systems including DOS, Unix, and Windows.
The # symbol is used for pre-processor statements in C.
Float is a scalar data type in C.
Tokens in C include keywords, variables, and constants.
The valid range of the int data type is -32768 to +32767.
The ; symbol is used to terminate a statement in C.
The \n escape sequence character is a line terminator in C.
The \a escape sequence character is used to beep from the speaker in C.
Character constants are enclosed between single quotes.
String constants are enclosed between double quotes.
‘abc’ is an invalid character constant in C, as it contains multiple characters.
The maximum length of a variable in C is 32 characters.
The maximum size of a float variable is 4 bytes.
The maximum size of a double variable is 8 bytes.
A declaration of float a; double b; occupies 12 bytes of memory (4 bytes for float & 8 bytes for double).
The size of a string variable is not specific and depends on the length of the string.
a+=10 is an example of a compounded assignment statement in C.
The && operator is used for logical comparison in C.
The & operator is used for bitwise AND in C.
The equality operator is represented by == in C.
Operator precedence determines the order in which operators are evaluated first in C.
The bitwise AND operator is used for masking in C.
The % operator is used for modulo (remainder) in C.
The associability of the = operator is right to left in C.
The () operator has the highest priority in C.
The || operator has the lowest priority in C.
Integer division in C truncates the fractional part.
?: is a Ternary Operator.
(data type) is a type casting operator.
Explicit type conversion is also known as casting.
a+=4 is equivalent to a=a+4.
p++ executes faster than p=p+1 because it is a single instruction.
C Library functions provide input/output (I/O) facilities.
Header files in C contain library functions.
getchar() and putchar() are used for single character I/O.
printf() returns a negative value when an error occurs.
putchar(“x”) is an invalid statement in C because it attempts to pass a string to the putchar() function, which is designed for single characters.
An ampersand (&) in scanf() before a variable name denotes the address of the variable.
Symbolic constants can be defined using #define.
The null character is represented by \0.
The string.h header file is essential for using the strcmp() function.
malloc() is available in the stdlib.h header file.
ctype.h contains testing and conversion character functions.
C supports three looping statements: for, while, and do-while.
A statement differs from an expression by terminating with a semicolon (;).
goto is an unconditional control structure.
auto is a keyword used for storage class.
a represents a character in C language.
There are 7 arithmetic operators: + - * / % ++ --.
There are 32 keywords available in C.
The advantage of a UNION over a STRUCTURE is memory storage.
The maximum number of elements in the array declaration int arr; is not specified and depends on the compiler.
Array subscripts in C always start at 0.
*int ptr; is the correct way to declare a pointer.
17.23 is the output of printf(“2.3f\n”,17.23478).
The values will be 5, -6 for floor(5.8) and floor(-5.8), respectively.
107 is the value of X.
The output of the program is 91.
The output of the program is 12.
A Binary operator applies to two operands while an Unary operator applies to a single operand.
A variable is a place where we can store data, and the size of an INT is 16 bits.
Variables can consist of letters, numbers, and underscores. You cannot use keywords.
The output of the program is: "India is my Country".
The output of the program is: "India is my Country!!".

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Description

Test your knowledge on the fundamentals of C programming with this multiple-choice quiz. Covering topics from data types to syntax rules, this quiz is perfect for beginners and those looking to refresh their understanding of C. Challenge yourself and see how well you know this essential programming language!