Random: Off 1. What is the purpose of including the <stdio.h> header file in a C program? ⓐ. For mathematical functions ⓑ. For input and output operations ⓒ. For string handling functions ⓓ. For memory allocation functions Explanation: The <stdio.h> header file in C provides functions like printf() and scanf() for input and output operations. […]
Random: Off 1. What is the purpose of a preprocessor directive in C programming? ⓐ. To declare variables ⓑ. To control compilation process ⓒ. To define functions ⓓ. To handle exceptions Explanation: Preprocessor directives in C are used to instruct the compiler to preprocess the information before actual compilation starts, such as including header files,
Random: Off 1. Which function is used to open a file in C? ⓐ. fopen() ⓑ. open() ⓒ. file_open() ⓓ. fop() Explanation: The `fopen()` function is used to open a file in C. It requires two parameters: the name of the file and the mode in which to open the file (e.g., “r” for reading,
Random: Off 1. What is an enumeration in C? ⓐ. A way to define constants ⓑ. A user-defined data type ⓒ. A function ⓓ. A type of loop Explanation: An enumeration is a user-defined data type in C that consists of integral constants, each of which is given a name. 2. How do you define
Random: Off 1. How is memory allocated for a union in C? ⓐ. Memory is allocated sequentially for each member of the union ⓑ. Memory is allocated based on the largest member of the union ⓒ. Memory is allocated dynamically during runtime ⓓ. Memory is allocated based on the smallest member of the union Explanation:
Random: Off 1. What is a structure in C programming? ⓐ. A type of array ⓑ. A collection of variables of different types ⓒ. A function ⓓ. A pointer Explanation: A structure in C is a user-defined data type that allows the grouping of variables of different types under a single name for easier handling.
Random: Off 1. Which function is used to allocate memory dynamically in C? ⓐ. malloc() ⓑ. calloc() ⓒ. realloc() ⓓ. free() Explanation: The `malloc()` function is used to allocate a specified number of bytes of memory during the execution of a program. 2. Which function is used to allocate and initialize memory in C? ⓐ.
Random: Off 1. What is a pointer in C programming? ⓐ. A variable that stores the address of another variable ⓑ. A variable that stores a fixed value ⓒ. A variable that stores a string ⓓ. A variable that stores only integers Explanation: A pointer in C is a variable that stores the memory address
Random: Off 1. Which of the following correctly represents a string termination in C? ⓐ. \t ⓑ. \0 ⓒ. \n ⓓ. \r Explanation: In C, strings are terminated by the null character ‘\0’, which signifies the end of the string. 2. What is the output of the following code snippet?
Random: Off 1. What is an array in C? ⓐ. A single variable that holds multiple values of different types ⓑ. A data structure that can hold multiple values of the same type ⓒ. A function that can return multiple values ⓓ. A collection of strings Explanation: An array in C is a data structure
