File Handling MCQ Quiz - Objective Question with Answer for File Handling - Download Free PDF

The correct answer is wb+.

Key Points

• The mode wb+ stands for "write binary plus", meaning it opens a file for both reading and writing in binary mode.
  • When a file is opened in wb+ mode, it allows you to read from and write to the file in binary format.
  • Binary mode means the data is read and written in binary format, which is suitable for non-text files like images or executable files.
  • Opening a file in wb+ mode will create the file if it does not exist or overwrite the file if it already exists.

Additional Information

• In contrast, the mode w opens a file for writing in text mode, but it does not allow reading.
• The mode a+ opens a file for reading and appending (writing at the end) in text mode.
• The mode w+ opens a file for both reading and writing in text mode, but not in binary format.
• Binary mode (using 'b' in the mode) is essential when dealing with binary files to ensure data is read and written correctly without any encoding issues.

Here is an example of how to use the wb+ mode in Python:

# Open a file for both reading and writing in binary mode
with open('example.bin', 'wb+') as file:
    # Write binary data to the file
    file.write(b'This is a test.')
    
    # Move the file pointer to the beginning
    file.seek(0)
    
    # Read the binary data from the file
    content = file.read()
    print(content)
    

The correct answer is wb+.

Key Points

• The mode wb+ stands for "write binary plus", meaning it opens a file for both reading and writing in binary mode.
  • When a file is opened in wb+ mode, it allows you to read from and write to the file in binary format.
  • Binary mode means the data is read and written in binary format, which is suitable for non-text files like images or executable files.
  • Opening a file in wb+ mode will create the file if it does not exist or overwrite the file if it already exists.

Additional Information

• In contrast, the mode w opens a file for writing in text mode, but it does not allow reading.
• The mode a+ opens a file for reading and appending (writing at the end) in text mode.
• The mode w+ opens a file for both reading and writing in text mode, but not in binary format.
• Binary mode (using 'b' in the mode) is essential when dealing with binary files to ensure data is read and written correctly without any encoding issues.

Here is an example of how to use the wb+ mode in Python:

# Open a file for both reading and writing in binary mode
with open('example.bin', 'wb+') as file:
    # Write binary data to the file
    file.write(b'This is a test.')
    
    # Move the file pointer to the beginning
    file.seek(0)
    
    # Read the binary data from the file
    content = file.read()
    print(content)