Quiz 6

Which of the following best describes a text file?

• Stores human-readable characters using encodings like ASCII or UTF-8
  

• Stores only images and videos
  

•  Contains only binary machine instructions

• Cannot be edited with text editors

 Which Python module is primarily used for file and directory operations?

• sys

• os

• random

• shutil

 What exception is raised when a file to be opened does not exist?

• IOError

• KeyError

• FileNotFoundError

• ValueError

What is the main advantage of using the "with" keyword when opening files?

• Makes the program faster

• Automatically closes the file after operations

• Allows writing binary data only

• Prevents the need for try-except blocks

Which mode should be used to append data to a file without deleting its existing content?

• "r"

•  "w"

•  "a"

• "rb"

Which method reads the entire content of a file as a single string?

• readline()

• read()

• readlines()

• seek()

Answer explanation

read() Reads the whole file content as one single string.

readline() Reads one line at a time (up to a newline \n).

readlines() Reads all lines into a list, where each line is a separate string.

he method os.getcwd() in Python is used to:

• Delete a directory

• Change file ownership

• Return the current working directory
  

• Rename a file

Which file mode should be used for reading a binary file?

• "r"

• "rb"

• "wb"

•  "ab"

 What does os.listdir(".") return?

• Current working directory

•  List of all files and folders in the given path

• File size of each file in the directory

• Name of the current file

Which function is the most Pythonic way to ensure a file closes automatically after use?

• open()

• close()

•  with open()

• exit()