Input / Output (2)

What is the purpose of "rb" in fopen() function used below in the code?

FILE *fp;
fp = fopen("source.txt", "rb");

A.	open "source.txt" in binary mode for reading
B.	open "source.txt" in binary mode for reading and writing
C.	Create a new file "source.txt" for reading and writing
D.	None of above

Answer: Option A

Explanation:

The file source.txt will be opened in the binary mode.

10.

In a file contains the line "I am a boy\r\n" then on reading this line into the array str using fgets(). What will str contain?

Answer: Option C

Explanation:

Declaration: char *fgets(char *s, int n, FILE *stream);

fgets reads characters from stream into the string s. It stops when it reads either n - 1 characters or a newline character, whichever comes first.

Therefore, the string str contain "I am a boy\n\0"