C programming interview questions and answers with explanations pdf: C Programming has become the most important subject as a part of the interview process for almost all the companies, competitive exams. This article focuses on the most commonly asked and latest C Programming Interview Questions and Answers. You can make the most of our C Programming Examples with Output to get acquainted with various fundamental concepts and advanced concepts of C Language. Refer to the C Programming Coding Questions and Answers PDF as a quick reference to know the kind of questions you might encounter as a part of your exams.
C Interview Questions and Answers
- C Fundamental Interview Questions
- Data Types & Variables Interview Questions
- C Operators and Statements Interview Questions
- C printf and scanf Interview Questions
- C String Interview Questions
- Array and Matrix Interview Questions
- Pointers Interview Questions
- C Functions Interview Questions
C Fundamental Interview Questions
- What is C programming language.
- Who developed C programming language.
- What are the uses of C programming language.
- What is the difference between C and C++.
- What is the difference between C and Java Programming Language.
- What do you mean by programming language? Explain with examples.
- What are the disadvantages of C programming language.
- What do you mean by high level, middle level and low level languages and give an example for each.
- Why C is a Middle level programming language.
- What are the advantages of C programming language.
- What is the difference between compiler, interpreter and assembler.
- What are the key features and characteristics of C programming language.
- Is C programming language is case sensitive.
Data Types & Variables Interview Questions
- What are different data type in C.
- What are Tokens in C? what are the different Types of Tokens in C.
- Can variable names in C have special symbols.
- Can variable names in C start with underscore.
- What is modifier in C and different types of modifiers.
- What is the difference between Character, Integer, Float and Double data types.
- What is constant in C and Different Types of Constants.
- What is identifier in C.
- What is keyword in C
- What is the difference between constant and variable in C
- What is enum data type in C
- What is void data type in C
- What is local variable in C
- What is global variable in C
- What is the difference between auto variable and register variable in C
- What is static variable in C
- What are the properties of a register variable in C
- What is the difference between variable declaration and variable definition in C
C Operators and Statements Interview Questions
- What is operator in C.
- What are the different types of operator in C.
- What is the use of sizeof() operator in C
- What is arithmetic operators in C
- What is assignment operators in C
- What is the relational operators in C
- What is conditional operator and it’s syntax in C.
- What is the logical operator in C.
- What is the bitwise operator in C.
- What is the difference between = and == operators in C.
- What is the difference between pre increment operator(++var) and post increment operator(var++).
- What is the difference between pre decrement operator(–var) and post decrement operator(var–).
- What is the difference between & and * operators in C.
- What will happen if break statement is not used in switch case in C.
- Why is default statement used in switch case in C.
- What is the use of goto statement in C.
C printf and scanf Interview Questions
C String Interview Questions
- Write a C program to reverse a string.
- Write a C program to reverse a string using recursion
- Write a C program to copy one string into another string
- Write a C program to find length of a string using a user defined function
- Write a c program to check whether is string is palindrome or not
- Write a C program to compare two strings using strcmp
- Write a C program to concatenate or append two strings using pointers
- What is the difference between string and array.
- What is the difference between strcpy() and strncpy() String functions in C.
- What is the difference between memcpy() and memmove() String functions in C.
- What is the difference between strcmp and strncmp String functions in C
Array and Matrix Interview Questions
- What is Array in C programming language.
- What are advantages and disadvantages of Arrays in C.
- Can we use negative array indexes in C, like marks[-2].
Pointers Interview Questions
- What is pointer in C
- What is Address Of(&) Operator and Value Of(*) Operator in C.
- What is Wild Pointer in C
- What is pointer to a function in C
- What is Dangling Pointer in C.
- What is NULL pointer in C
- What are the advantages of using Pointers in C
- What is size of a pointer variable.
- What is size of void pointer in C.
- What is difference between uninitialized(wild) pointer and null pointer.
- What is const pointer in C.
- What are the uses of NULL pointer and void pointer.
- Can pointer arithmetic be applied to void pointers.
- What is pointer Arithmetic ? What are the valid and Invalid Pointer Arithmetic operations.
- What is Memory leak in C and how can we avoid it.
- Can array size be declared at run time.
- What happens when we try to access NULL pointer in C.
C Functions Interview Questions
- What do you mean by prototype of a function.
- What is difference between Call by value and Call by reference in C.
- How function calls work in C programming language.
- From which function execution of any C program starts.
- What are the various ways of passing arguments to a function in C.
- What is exit function in C.
- What is atexit function and can we call it more than once in a C program.
- What is the scope of local and global variables in C.
- What are the uses of main function in C.
C Programming Coding Questions and Answers PDF
C-language interview questions: If you are ever stuck at some point while preparing the C Language then you can check out or C Programming Questions and Answers. We have organized them as per the topics and all you have to do is simply tap on the quick links in order to access them. Use the C Language Interview Questions as a quick cheat sheet to assess your knowledge and remediate the knowledge gap as well so that you can crack the exams quite simply. You will find the C Programming Questions of all levels be it fresher, beginner, or experienced candidates.
FAQs on Basic C Programming Interview Questions and Answers PDF
1. Where can I learn C Programming Language Interview Questions?
You can find C Programming Interview Questions organized all in one place as per the latest trends on our page.
2. Which is the best website for practicing C Programming Interview Questions?
NCERTBooks.guru is the best website for practicing C Programming Interview Questions and all the questions available will clearly enhance your subject knowledge and helps you score good grades in exams.
3. What are some important C Programming Questions that are asked in Interviews?
Some of the Important C Programming Questions that are asked in Interviews are as below
- Why is C programming known as the mother language?
- Explain the basic data types associated with C?
- What do you mean by NULL pointer?
- Define a pointer in C language?
- What is recursion in the C language?
- What is keyword auto for?
- What are the valid places for the keyword break to appear?
- Explain the syntax of for loop?
- Explain structure in C language?
- What is a pointer on pointer?
- Distinguish between malloc() & calloc() memory allocation?
Final Words
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