Mastering Python Loops

What is the output of the following code: for i in range(5): print(i)?

• 3.5

• 5

• -1

• 0 1 2 3 4

Which of the following correctly defines a for loop in Python?

• for each item in collection:

• for index in range(start, end):

• while variable in iterable:

• for variable in iterable:

What will be the output of the following code: sum = 0; for i in range(1, 5): sum += i; print(sum)?

• 10

• 20

• 15

• 5

In a for loop, what does the 'range()' function do?

• The 'range()' function defines the maximum limit of a loop.

• The 'range()' function creates a list of strings for iteration.

• The 'range()' function creates a sequence of numbers for iteration in a for loop.

• The 'range()' function generates random numbers for loops.

What is the primary difference between a for loop and a while loop?

• A for loop runs indefinitely, while a while loop has a fixed number of iterations.

• The primary difference is that a for loop iterates a known number of times, while a while loop continues until a condition is false.

• A for loop is used for conditional checks, while a while loop is for counting iterations.

• A for loop requires a condition, while a while loop does not need any conditions.

Which of the following statements will terminate a while loop?

• Changing the loop condition to false or using a break statement.

• Adding a return statement within the loop body.

• Changing the loop condition to true or using a continue statement.

• Incrementing the loop counter without changing the condition.

What will be the output of the following code: count = 0; while count < 3: print(count); count += 1?

• -1

• 4

• 0 1 2

• 3

What is a nested loop?

• A nested loop is a loop that runs within another loop.

• A nested loop is a single loop that executes multiple times.

• A nested loop is a loop that only runs once per iteration.

• A nested loop is a loop that runs independently of other loops.

How many times will the inner loop execute in the following code: for i in range(3): for j in range(2): print(i, j)?

• 8

• 10

• 6

• 4

What is the purpose of the 'break' statement in loops?

• To continue a loop indefinitely.

• To skip the current iteration of a loop.

• To pause the execution of a loop temporarily.

• To exit a loop prematurely.