python_quiz4

Which of the following is not a method of opening files?

• Append

• Replace

• Read

• Write

What is the last action that must be performed on a file?

• End

• Write

• Save

• Close

When will the else part of try-except-else be executed?

• always

• when an exception occurs

• when no exception occurs

• never

Answer explanation

The else part is executed when no exception occurs.

Is the following Python code valid?

try:

# Do something

except:

# Do something

else:

# Do something

• no, there is no such thing as else

• no, else cannot be used with except

• no, else must come before except

• yes

What is the function used to open a file in Python?

• open()

• read()

• write()

• close()

What is the default mode for opening a file in Python?

• 'r'

• 'w'

• 'a'

• 'x'

What is the syntax for opening a file in write mode?

• file = open("filename.txt", "w")

• file = open("filename.txt", "r")

• file = open("filename.txt", "a")

• file = open("filename.txt", "x")

What happens if you try to open a file that does not exist in Python?

• A new file is created with that name.

• An error occurs.

• The program waits for the file to be created.

• The program continues running without any issues

What is an exception in Python?

• A syntax error

• An error that occurs during program execution

• A warning message

• None of the above

What is the purpose of the finally block in a try-except statement?

• To handle the exception

• To raise an exception

• To execute code whether or not an exception occurs

• To skip the rest of the code in the try block