This is the c programming questions and answers section on " Standard Input and Output " with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.
1. Which among the following is odd one out?
- A. printf
- B. fprintf
- C. putchar
- D. scanf
Answer: Option D
Explanation:
None.
2. For a typical program, the input is taken using.
- A. scanf
- B. Files
- C. Command-line
- D. None of the mentioned.
Answer: Option D
Explanation:
None.
3. What does the following command line signify?
prog1|prog2
- A. It runs prog1 first, prog2 second
- B. It runs prog2 first, prog1 second
- C. It runs both the programs, pipes output of prog1 to input of prog2
- D. It runs both the programs, pipes output of prog2 to input of prog1
Answer: Option C
Explanation:
None.
4. What is the default return-type of getchar()?
- A. char
- B. int
- C. char *
- D. Reading character doesn’t require a return-type
Answer: Option B
Explanation:
None.
5. The value of EOF is_____.
Answer: Option A
Explanation:
None
