C - Storage Classes of Variables Questions and Answers
C Storage Classes of Variables MCQ questions with answers focus on auto, static, extern, and register storage classes. Understanding these concepts is essential for mastering memory management and variable scope in C programming. These programming questions and answers are frequently asked in interviews and placement exams conducted by Wipro, TCS, and Infosys. Practicing MCQs on C storage classes helps improve your grasp of variable lifetime, linkage, and accessibility. Download the C programming MCQ PDF and attempt online practice tests to build a strong foundation in variable management.
C - Storage Classes of Variables
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33 questions
31. What does extern means in a function declaration ?
- The function has global scope.
- The function need not be defined
- Nothing really
- The function has local scope only to the file it is defined in.
32. extern int s; int t; static int u; main ( ) { } which of s, t and u are available to a function present in another file ?
- only s
- s & u
- s, t, u
- none
33. What will be the output of the following code ? static int i = ; main ( ) { int sum=; do { sum+=(/i); }while (<i - - ); printf ("sum of the series is %d", sum ); }
- It will print the sum of the series 1/5+1/4+.....+1/1.
- It will produce a compilation error
- It will produce a runtime error.
- None of the above.