Mastering Python Loops and Conditionals

What is the output of the following code:

for i in range(5):

print(i)

• 0 1 2 3 4

• 5

• 10

• -1

Which of the following is a valid while loop syntax in Python?

• while condition: do_something()

• while: do_something()

• do_something() while condition

• while (condition) do_something()

What will be the output of the following code:

x = 10

while x > 0:

print(x)

x -= 1

• 10 9 8 7 6 5 4 3 2 1

• 0

• -1

• 11

How do you break out of a loop in Python?

• Use the 'exit' function to break out of a loop.

• Remove the loop condition to stop the loop.

• Use the 'break' statement to exit a loop.

• Use the 'continue' statement to exit a loop.

What is the purpose of the 'continue' statement in a loop?

• To end the loop immediately and exit.

• To repeat the current iteration of a loop.

• To pause the loop for a specified time.

• To skip the current iteration of a loop.

Which of the following correctly defines a list in Python?

• A list in Python is a collection of items that can only contain integers.

• A list in Python is a fixed-size array that cannot be modified after creation.

• A list in Python is an ordered collection of items enclosed in square brackets.

• A list in Python is an unordered collection of items enclosed in curly braces.

What is the difference between a list and a tuple in Python?

• The main difference is that lists are mutable and tuples are immutable.

• Lists can contain only numbers while tuples can contain any data type.

• Lists are defined using parentheses while tuples are defined using square brackets.

• Tuples are faster than lists because they use more memory.

How can you access the first element of a tuple named 'my_tuple'?

• my_tuple[1]

• my_tuple[0]

• my_tuple.first()

• my_tuple.get(0)

What method would you use to add an item to the end of a list?

• Use the insert() method.

• Use the append() method.

• Use the extend() method.

• Use the add() method.

How do you remove a key from a dictionary in Python?

• Use 'dict.pop(key)'.

• Use 'dict.delete(key)' function

• Use 'remove(key)' method

• Assign 'None' to dict[key]