Explore topic-wise MCQs in C programming (MCQ) questions.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your C programming (MCQ) questions knowledge and support exam preparation. Choose a topic below to get started.

1.

What is stderr?

A. standard error
B. standard error types
C. standard error streams
D. standard error definitions
Answer» D. standard error definitions
Discussion
2.

Which directory the compiler first looks for the file when using #include?

A. Current directory where program is saved
B. C:COMPILERINCLUDE
C. S:SOURCEHEADERS
D. Both (b) and (c) simultaneously
Answer» C. S:SOURCEHEADERS
Discussion
3.

Comment on the output of this C code?#include #include "test.h"#include "test.h"int main(){//some code}

A. TRUE
B. Compile time error
C. FALSE
D. Depends on the compiler
Answer» E.
Discussion
4.

How is search done in #include and #include "somelibrary.h" according to C standard?

A. When former is used, current directory is searched and when latter is used, standard directory is searched
B. When former is used, standard directory is searched and when latter is used, current directory is searched
C. When former is used, search is done in implementation defined manner and when latter is used, current directory is searched
D. For both, search for somelibrary is done in implementation-defined places
Answer» E.
Discussion
5.

What would happen if you create a file stdio.h and use #include "stdio.h" ?

A. The predefined library file will be selected
B. The user-defined library file will be selected
C. Both the files will be included
D. The compiler won t accept the program
Answer» C. Both the files will be included
Discussion
6.

What will be the output of the program? #includeint main(){int y=128;const int x=y;printf("%d n", x);return 0;}

A. 128
B. Garbage value
C. Error
D. 0
Answer» B. Garbage value
Discussion