C Programming Questions and Answers – Error Handling – 2

This set of C Multiple Choice Questions & Answers (MCQs) focuses on “Error Handling – 2”.

Pre-requisite for this C MCQ set: Advanced C Programming Video Tutorial.

1. Which of the following causes an error?
a) Trying to read a file that doesn’t exist
b) Inability to write data in a file
c) Failure to allocate memory with the help of malloc
d) All of the mentioned
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2. What is the purpose of the C function?

int ferror(FILE *fp)

a) They check for input errors
b) They check for output errors
c) They check for all types of errors
d) They check for error in accessing the file
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3. stderr is similar to?
a) stdin
b) stdout
c) Both stdout and stdin
d) None of the mentioned
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4. What will be the output of the following C statement?

fprintf(stderr, "error: could not open filen");

a) The diagnostic output is directly displayed in the output
b) The diagnostic output is pipelined to the output file
c) The line which caused error is compiled again
d) The program is immediately aborted
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5. Which of the following function can be used to terminate the main() function from another function safely?
a) return(expr);
b) exit(expr);
c) abort();
d) both exit(expr); and abort();
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6. Which of the following causes an error?
a) Trying to read a file that doesn’t exist
b) Inability to write data in a file
c) Failure to allocate memory with the help of malloc
d) All of the mentioned
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7. What is the purpose of the C function?

int ferror(FILE *fp)

a) They check for input errors
b) They check for output errors
c) They check for all types of errors
d) They check for error in accessing the file
View Answer

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