Basic C Programming MCQ Questions and Answers
Basic C Programming MCQ questions with answers help candidates master the fundamentals of C language — one of the most popular programming languages for beginners and interview aspirants. These programming questions and answers focus on syntax, operators, loops, functions, and data handling. Practicing C programming MCQs strengthens logic and helps students perform better in technical assessments by TCS, Infosys, HCL, and other top recruiters. Each question is designed to test conceptual understanding and problem-solving skills, making it ideal for both practice and revision before coding interviews or placement exams.
Basic C Programming MCQ
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198 questions
131. Let x be an array. which of the following operations are illegal ?
- ++x
- x + 1
- x++
- x * 2
132. If func is a function needing three arguments a1, a2, a3, then func can be invoked by
- func(a1, a2, a3);
- (*func) (a1, a2, a3);
- *func(a1,. a2, a3);
- all of the above
133. The declaration int (*p) [5]; means
- p is a one dimensional array of size 5, of pointers to integers
- p is a pointer to a 5 element integer array
- the same as int *p[5]
- none of the above
134. A function q that accepts a pointer to a character as argument and returns a pointer to an array of integer can be declared as
- int (*q(char*))[]
- int *q(char *)[]
- int (*q) (char *) []
- none of the above
135. In the previous question, printf ("%d", a**b); prints
- 25
- garbage
- 0
- an error message
136. Choose the correct statements.
- Array stores data of the same type
- Array can be a part of a structure
- Array of structure is allowed
- Structure stores data of the same type
137. a ----> b is syntactically correct if
- a and b are structures
- a is a structure and b is a pointer to a structure
- a is a pointer to a structure and b is a structure
- a is a pointer to structure in which b is a field
138. A file is preferable to an array of structures because
- file lives even after the program that created it terminates
- memory space will not be wasted
- there are many system tools to manipulate files
- there are language as well as system features to deal with files
139. If a file is opened in r+ mode then
- reading is possible
- writing is possible
- it will be created if it does not exist
- all the above comments are true
140. ftell
- is a function
- gives the current file position indicator
- can be used to find the size of a file
- is meant for cheeking whether a given file exists or not