C Quiz with Certificate: Test Your Skills and Earn Recognition in 2024

Are you searching C Quiz with Certificate and gain recognition for your expertise? C language quiz is the perfect opportunity for you to test your knowledge and earn a certificate that validates your proficiency.

Designed for both beginners and experienced programmers, our quiz covers a wide range of topics, from basic syntax and data structures to advanced concepts like pointers and memory management.

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C Skill Quiz Exam

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1. What is a memory leak in C, and how can it be prevented?

Option (a) A memory leak occurs when dynamically allocated memory is not freed after it is no longer needed, leading to a gradual depletion of available memory.

Option (b) It can be prevented by using the free() function to release memory that was allocated using malloc(), calloc(), or realloc().

Option (c) Memory leaks can also be prevented by using smart pointers or garbage collection mechanisms.

Option (d) Both a) and b) are correct.

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2. What are command-line arguments in C, and how are they accessed?

Option (a) They are options passed to a program when it is executed, accessed through the argc and argv parameters in the main function.

Option (b) They are variables declared within a program that can be modified during execution.

Option (c) They are instructions given to the compiler to control how a program is compiled.

Option (d) They are error messages displayed by the program when it encounters an issue.

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3. Which of the following is a valid way to declare an integer array in C?

Option (a) int numbers[5];

Option (b) int numbers(5);

Option (c) numbers int[5];

Option (d) array numbers[5];

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4. What is a null pointer in C, and how is it represented?

Option (a) A pointer that points to nothing; represented by the value 0.

Option (b) A pointer that points to the first element of an array; represented by the array name.

Option (c) A pointer that points to a function; represented by the function name.

Option (d) A pointer that points to itself; represented by the this keyword.

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5. What does the printf function do in C?

Option (a) Read input from the user

Option (b) Open a file

Option (c) Print output to the console

Option (d) Declare a variable

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6. Which of the following is used to combine multiple conditions in a logical expression?

Option (a) Arithmetic operators

Option (b) Logical operators

Option (c) Relational operators

Option (d) Bitwise operators

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7. What is the output of the following code snippet?
C
printf("%d", 2 + 3 * 4);

Option (a) 20

Option (b) 14

Option (c) 10

Option (d) 8

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8 / 20

8. What are some common pitfalls and best practices to avoid in C programming?

Option (a) Avoid buffer overflows by ensuring that you never write beyond the bounds of an array or buffer.

Option (b) Be mindful of memory leaks by freeing dynamically allocated memory when it is no longer needed.

Option (c) Use const qualifiers to prevent accidental modification of variables and improve code safety.

Option (d) All of the above.

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9. What is the difference between a thread and a process in C?

Option (a) A thread is a unit of execution within a process, while a process is an instance of a running program.

Option (b) A process can have multiple threads, but a thread can belong to only one process.

Option (c) Threads within a process share the same memory space, while processes have their own independent memory spaces.

Option (d) All of the above.

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10. What is the purpose of the static keyword when applied to a local variable within a function?

Option (a) The variable is initialized only once and retains its value between function calls.

Option (b) The variable becomes accessible from outside the function.

Option (c) The variable is automatically deallocated when the function exits.

Option (d) The variable is stored on the heap instead of the stack.

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11. Which of the following is the correct way to declare a pointer variable?

Option (a) int* ptr;

Option (b) ptr int;

Option (c) pointer ptr;

Option (d) int ptr;

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12. What is the difference between a header file (.h) and a source file (.c) in C programming?

Option (a) Header files contain function declarations and macro definitions, while source files contain function implementations.

Option (b) Header files are compiled separately, while source files are linked together during the build process.

Option (c) Header files can be included multiple times, while source files can only be included once.

Option (d) All of the above.

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13 / 20

13. What is the purpose of the enum keyword in C?

Option (a) To create a list of named integer constants.

Option (b) To define a new data type with a restricted set of values.

Option (c) To declare variables that can hold only integer values.

Option (d) All of the above.

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14. What is the difference between a declaration and a definition of a variable in C?

Option (a) A declaration introduces a variable's name and type, while a definition allocates memory for the variable.

Option (b) A declaration initializes a variable, while a definition assigns a value to it.

Option (c) There is no difference; they are interchangeable.

Option (d) A declaration is used for local variables, while a definition is used for global variables.

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15. What is the purpose of the break statement in a switch case?

Option (a) To jump to the next case

Option (b) To exit the switch case

Option (c) To skip the current iteration of a loop

Option (d) To end the program

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16. What is the output of the following code snippet?
char str[] = "Hello";
printf("%d", sizeof(str));


Option (a) 5

Option (b) 6

Option (c) 10

Option (d) Error

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17 / 20

17. Explain the concept of a file pointer in C programming.

Option (a) A file pointer is a variable that stores the current position within a file.

Option (b) A file pointer is used to open, read, write, and close files.

Option (c) A file pointer is a structure that contains information about a file.

Option (d) All of the above.

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18. What is the role of the typedef keyword in C?

Option (a) To define a new data type

Option (b) To create an alias for an existing data type

Option (c) To declare a function

Option (d) To allocate memory dynamically

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19. What are inline functions in C, and what are their advantages?

Option (a) Inline functions are functions whose code is inserted directly into the calling code, rather than being called through a function call mechanism.

Option (b) They can improve performance by eliminating the overhead of function calls.

Option (c) However, excessive use of inline functions can increase the size of the executable.

Option (d) All of the above.

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20. Which of the following is the correct way to dynamically allocate memory for an array of 10 integers using malloc()?

Option (a) int *ptr = malloc(10);

Option (b) int *ptr = (int*)malloc(10 * sizeof(int));

Option (c) int ptr[10] = malloc(sizeof(int));

Option (d) int *ptr = (int*)malloc(10);

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About C Language

C is an imperative, procedural language in the ALGOL tradition. It has a static type system. In C, all executable code is contained within subroutines (also called “functions”, though not in the sense of functional programming). Function parameters are passed by value, although arrays are passed as pointers, i.e. the address of the first item in the array. Pass-by-reference is simulated in C by explicitly passing pointers to the thing being referenced. Source from : https://en.wikipedia.org/wiki/C_(programming_language)

This (C Quiz with Certificate) is interactive and engaging, featuring multiple-choice questions, code snippets, and problem-solving exercises that challenge your understanding of C programming. Each question is carefully crafted to test different aspects of your knowledge, ensuring a comprehensive assessment of your skills. Whether you are preparing for a job interview, a coding competition, or simply looking to improve your programming abilities, our quiz provides an excellent platform for practice and learning.

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Start your journey towards mastering C programming today. Take our quiz, challenge yourself, and earn a certificate that highlights your technical prowess. Whether you’re a student, a professional, or a programming enthusiast, our C programming quiz with certificate is a valuable tool for achieving your goals and advancing your career.

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