Quiz for Binary file operations

Q1: Which mode is used to open a file in binary mode?

A. ios::binary B. ios::text C. ios::app D. ios::trunc

Q2: Which function is used to write binary data to a file?

A. write() B. read() C. put() D. get()

Q3: Which function is used to read binary data from a file?

A. write() B. read() C. put() D. get()

Q4: What does the function write() require as arguments?

A. Pointer to data and size in bytes B. String and size C. File name and mode D. Buffer and length

Q5: What type of pointer is passed to read() function?

A. Pointer to char B. Pointer to int C. Pointer to void D. Pointer to data buffer

Q6: How do you open a file named "data.bin" for binary output?

A. ofstream file("data.bin", ios::binary); B. ifstream file("data.bin", ios::binary); C. fstream file("data.bin", ios::out | ios::binary); D. fstream file("data.bin", ios::in | ios::binary);

Q7: What is the return type of write() function?

A. void B. fstream& C. bool D. int

Q8: Can binary files be edited directly with a text editor?

A. Yes B. No C. Sometimes D. Only on Windows

Q9: Which of the following is NOT true about binary files?

A. Data is stored as raw bytes B. File size is generally smaller than text files C. They are portable across different systems D. They require specific functions to read/write

Q10: Which function moves the get pointer to a specified location?

A. seekg() B. seekp() C. tellg() D. tellp()

Q11: Which function moves the put pointer to a specified location?

A. seekg() B. seekp() C. tellg() D. tellp()

Q12: Which function tells the current position of the get pointer?

A. tellp() B. tellg() C. seekp() D. seekg()

Q13: Which function tells the current position of the put pointer?

A. tellp() B. tellg() C. seekp() D. seekg()

Q14: What happens if you try to read more bytes than available in a binary file?

A. Returns fewer bytes B. Throws exception C. Returns zero bytes D. Hangs program

Q15: Which flag combination opens a binary file for both input and output?

A. ios::in | ios::binary B. ios::out | ios::binary C. ios::in | ios::out | ios::binary D. ios::app | ios::binary

Q16: How can you check if a binary file stream is open?

A. file.open() B. file.is_open() C. file.check() D. file.opened()

Q17: What is the typical size of data chunk used with read/write?

A. 1 byte B. Size of data structure or object C. 10 bytes D. 100 bytes

Q18: Why use binary files over text files?

A. They are easier to read B. Faster reading and writing C. Compatible with all systems D. None of the above