Explore topic-wise MCQs in C Programming.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your C Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

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

A. They can contain alphanumeric characters as well as special characters
B. It is not an error to declare a variable to be one of the keywords(like goto, static)
C. Variable names cannot start with a digit
D. Variable can be of any length
Answer» D. Variable can be of any length
Discussion
2.

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

A. int number;
B. float rate;
C. int variable_count;
D. int $main;
Answer» E.
Discussion
3.

Variable name resolution (number of significant characters for the uniqueness of variable) depends on ___________

A. Compiler and linker implementations
B. Assemblers and loaders implementations
C. C language
D. None of the mentioned
E. depends on ___________a) Compiler and linker implementationsb) Assemblers and loaders implementationsc) C languaged) None of the mentioned
Answer» B. Assemblers and loaders implementations
Discussion
4.

All keywords in C are in ____________

A. LowerCase letters
B. UpperCase letters
C. CamelCase letters
D. None of the mentioned
Answer» B. UpperCase letters
Discussion
5.

Why do variable names beginning with the underscore is not encouraged?

A. It is not standardized
B. To avoid conflicts since assemblers and loaders use such names
C. To avoid conflicts since library routines use such names
D. To avoid conflicts with environment variables of an operating system
Answer» D. To avoid conflicts with environment variables of an operating system
Discussion
6.

C99 standard guarantees uniqueness of ___________ characters for external names.

A. 31
B. 6
C. 12
D. 14
Answer» B. 6
Discussion
7.

C99 standard guarantees uniqueness of __________ characters for internal names.

A. 31
B. 63
C. 12
D. 14
Answer» C. 12
Discussion