Understanding the use of basic file handling operations

• File handling allows programs to persistently store data beyond runtime.


  True
• The open() function is used to establish a connection between a program and a file.
• What is the purpose of the $read()$ function?


  Extract data from file
• The close() function is used to terminate the connection between a program and a file.
• What is one primary purpose of file handling in programming?

  Persistent storage
• Match the file handling operation with its description:

  Open ↔️ Connects the program to a file

  Read ↔️ Retrieves data from the file

  Write ↔️ Adds data to the file

  Close ↔️ Disconnects the program from the file
• Data access in file handling allows programs to load and use stored information.


  True
• The open() function takes two main parameters: filename and mode.
• What happens if you open a file in "w" mode and it already exists?

  It is overwritten
• An example of opening a file for writing is: $file =$$open("data.txt", "w")$, where the mode is "w".
• The open operation establishes a connection between the program and a file
• The 'close' operation terminates the connection between the program and the file
• What is the primary purpose of file handling in terms of data storage?

  Persistent storage
• What is the purpose of the $open()$ function in file handling?


  Establish a connection
• What happens when you open a file with the "w" mode in $open()$?


  Creates or overwrites
• The $read()$ function can take an optional parameter to specify the number of characters
• What does the $read()$ function do if no parameter is provided?


  Reads entire file
• The $write()$ function takes a single argument, which is the data to be written
• What is file handling in programming?

  Reading from and writing to files
• File handling operations allow programs to store data beyond their runtime.


  True
• Arrange the key file handling operations in the correct sequence.

  1️⃣ Open

  2️⃣ Read ||| Write

  3️⃣ Close
• What is the purpose of persistent storage in file handling?

  Save data beyond runtime
• Why is data exchange a main purpose of file handling?

  Facilitates sharing data between programs
• What does the "filename" parameter in the open() function specify?

  The name of the file
• What is the purpose of the read() function?

  Extract data from a file
• If no size is specified in the read() function, the entire file is read.


  True
• The write() function adds data to a file from the program.
• The read() function extracts data, while the write() function adds data.

  True
• Closing a file releases system resources used by the file.
• A FileNotFoundError occurs when the program tries to access a file that does not exist.


  True
• It is optional to handle errors during file handling operations using try-except blocks.

  False
• An IOError occurs when there's a general input/output error during file handling
• In the example code, what error is caught if the file "data.txt" does not exist?

  FileNotFoundError
• What specific error is handled in the last except block of the example code?

  IOError
• Opening a file in "r" mode allows you to write to it.

  False
• When reading the entire contents of a file using file.read(), the data is stored in a single string
• What method is used to remove leading and trailing whitespace from a line read from a file?

  strip()
• What is the purpose of file handling in programming?

  Store and retrieve data
• The `"\n"` sequence in Python is used to create a new line in a file.


  True
• Opening a file in "w" mode will overwrite the file if it exists.