Welcome to the Data Types,Operators and Expressions in C MCQs Page

Dive deep into the fascinating world of Data Types,Operators and Expressions in C with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Types,Operators and Expressions in C, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Types,Operators and Expressions in C, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

Check out the MCQs below to embark on an enriching journey through Data Types,Operators and Expressions in C. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Data Types,Operators and Expressions in C. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Types,Operators and Expressions in C MCQs | Page 1 of 66

Explore more Topics under C Programming

01

C Programming Fundamentals

02

Control Flow Statements in C

03

Functions

04

Pointers and Arrays in C

05

Structures and Unions

06

Input and Output in C

07

Library Functions

08

Strings

09

File Handling in C

10

Macro and Preprocessor

Q1.

C99 standard guarantees uniqueness of ____ characters for internal names.

Discuss

Answer: (b).63

Q2.

C99 standard guarantess uniqueness of _____ characters for external names.

Discuss

Answer: (a).31

Q3.

Which of the following is not a valid variable name declaration?

int __a3;

int __3a;

int 3_a;

int _3a;

Discuss

Answer: (c).int 3_a;

Q4.

Variable names beginning with underscore is not encouraged. Why?

It is not standardized

To avoid conflicts since assemblers and loaders use such names

To avoid conflicts since library routines use such names

To avoid conflicts with environment variables of an operating system

Discuss

Answer: (c).To avoid conflicts since library routines use such names

Q5.

All keywords in C are in

LowerCase letters

UpperCase letters

CamelCase letters

None of the mentioned

Discuss

Answer: (a).LowerCase letters

Q6.

Variable name resolving (number of significant characters for uniqueness of variable) depends on

Compiler and linker implementations

Assemblers and loaders implementations

C language

None of the mentioned

Discuss

Answer: (a).Compiler and linker implementations

Q7.

Which of the following is not a valid C variable name?

int number;

float rate;

int variable_count;

int $main;

Discuss

Answer: (d).int $main;

Q8.

Which of the following is true for variable names in C?

They can contain alphanumeric characters as well as special characters

It is not an error to declare a variable to be one of the keywords(like goto, static)

Variable names cannot start with a digit

Variable can be of any length

Discuss

Answer: (c).Variable names cannot start with a digit

Q9.

Which is valid C expression?

int my_num = 100,000;

int my_num = 100000;

int my num = 1000;

int $my_num = 10000;

Discuss

Answer: (b).int my_num = 100000;

Q10.

What is the output of this C code?

#include <stdio.h>
    int main()
    {
        printf("Hello World! %d \n", x);
        return 0;
    }

Hello World! x;

Hello World! followed by a junk value

Compile time error

Hello World!

Discuss

Answer: (c).Compile time error

Page 1 of 66

Welcome to the Data Types,Operators and Expressions in C MCQs Page

Data Types,Operators and Expressions in C MCQs | Page 1 of 66

Explore more Topics under C Programming

C Programming Fundamentals

Control Flow Statements in C

Functions

Pointers and Arrays in C

Structures and Unions

Input and Output in C

Library Functions

Strings

File Handling in C

Macro and Preprocessor

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