PCEP Controlling loop execution 2

Question 1

What happens when a `break` statement is encountered inside a nested `for` loop?

Accepted Answer

It exits only the innermost loop

Answer

It exits all loops immediately

Answer

It skips to the next iteration of the outer loop

Answer

It raises a SyntaxError

Question 2

What is the output of this code?
```python
for i in range(5):
    if i == 3:
        continue
    print(i, end=' ')
```

Accepted Answer

0 1 2 4

Answer

0 1 2 3 4

Answer

1 2 4 5

Answer

0 1 2

Question 3

Which of the following correctly uses `break` inside a `while` loop?

Accepted Answer

while True:
    break

Answer

while True:
    break()

Answer

while True:
    stop break

Answer

while True:
    exit loop

Question 4

What does the `else` clause of a `for` loop execute?

Accepted Answer

Only when the loop completes without hitting a `break`

Answer

Only when the loop body raises an exception

Answer

Only when the loop iterates zero times

Answer

Every time the loop condition is checked

Question 5

What is the output of:
```python
for i in range(3):
    pass
print(i)
```

Accepted Answer

2

Answer

0

Answer

3

Answer

NameError

Question 6

How does `continue` differ from `break` inside a loop?

Accepted Answer

`continue` skips to the next iteration; `break` exits the loop

Answer

`continue` exits the loop; `break` skips to the next iteration

Answer

Both exit the loop immediately

Answer

Both skip to the next iteration

Question 7

What is the result of this code?
```python
x = 10
while x > 0:
    x -= 3
    if x == 4:
        break
print(x)
```

Accepted Answer

4

Answer

1

Answer

7

Answer

-2