Which out of the following mode is required to be used while opening a binary file to allow read as well as write operations in a Python program?

Correct option is D

In Python, the rb+ mode opens a file in binary format for both reading and writing. This mode allows you to read existing content and write new data to the file without truncating it.

Important Key Points:

1. r stands for read.
2. b stands for binary.
3. + indicates both reading and writing are allowed.
4. Using rb+ ensures the file is treated as a binary file, which is essential for non-text files like images, executables, or serialized data.

Knowledge Booster:

• (a) ab: Opens the file in binary append mode (writing only, at the end of the file).
• (b) wb: Opens the file in binary write mode (truncates the file if it exists).
• (c) r+: Opens the file in text mode for both reading and writing (not suitable for binary files).