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

`break` only terminates the innermost loop in which it appears, not any enclosing loops.

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

`continue` skips the iteration where `i == 3`, so 3 is not printed.

Question 3

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

Accepted Answer

while True:
    break

Answer

`break` is a statement used alone without parentheses or additional keywords.

Question 4

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

Accepted Answer

Only when the loop completes without hitting a `break`

Answer

The `else` clause runs after the loop finishes normally, but is skipped if a `break` exits the loop.

Question 5

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

Accepted Answer

2

Answer

The loop variable `i` retains its last value after the loop ends, which is 2 for `range(3)`.

(PCEP) Certified Entry-Level Python Programmer Practice Test