Computer Input Output Test Online

Mustansar KhanLast Updated: October 15, 2025

Start your preparation for Computer Input Output Test Online. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Computer Input Output Question and Answer

Total Questions: 50
Time Allowed: 25 Minutes
Total Marks: 50
How to Attempt Test: Please choose the right Option in MCQ-type question.
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Computer Input/Output Practice Test Online With Explanation

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1. Which of the following functions detects end-of-file?

2. Which of the following functions writes a string to a file?

3. Which of the following functions allows formatted input from a file?

4. Which escape sequence is used to print a new line?

5. Which function is used to move the file pointer?

6. Which I/O function is used for file input/output?

7. Which of the following is used for binary file input/output?

8. Which function is used to close an open file?

9. What does ferror() check?

10. How do you read a character array (string) using scanf()?

11. Which mode opens a file for both reading and writing, starting at the beginning?

12. Which function is safer to use instead of gets()?

13. How many arguments can printf() accept?

14. Which function is used to read formatted input from the keyboard?

15. What will the function getchar() do?

16. Which of the following is a formatted output function for files?

17. Which of the following correctly opens a file for writing in C?

18. What is the return type of fopen()?

19. Which function is used to get the current position of the file pointer?

20. What does scanf("%d", &x); do?

21. Which function would you use to input values into multiple variables?

22. Which function pauses the program until a key is pressed?

23. Which function displays a string followed by a newline character?

24. Which header file is used for standard input and output functions in C?

25. What is the format specifier for reading a string?


 

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Mustansar KhanLast Updated: October 15, 2025

Mustansar Khan

Hey Exam Warriors! I'm Mustansar Khan, your ally in conquering tests. Uncover strategies, real-time experiences, and expert advice to turn your study sessions into victories. Let's gear up for success!
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