01
Choose one
1 point
What happens when the condition of a while loop is initially false?
Free Practice Quiz Question List
4 Repetition and Looping Online Quiz Questions
Use this free practice quiz with 20 questions to review 4 Repetition and Looping, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
Which property most directly favors a do-while loop over a while loop?
- A
The loop body must be allowed to execute at least once.
- B
The loop body must never execute when the condition is initially false.
- C
The loop must always use a break statement to terminate.
- D
The loop must combine initialization, condition testing, and updating in one statement.
03
Choose one
1 point
What does this C++ loop print?
for (int value = 10; value >= 0; value -= 2) { std::cout << value << ' '; }
- A
10 8 6 4 2 0 - B
10 8 6 4 2 - C
8 6 4 2 0 - D
10 9 8 7 6 5 4 3 2 1 0
04
Choose all
1 point
Which elements should a loop design normally make explicit? Select all that apply.
- A
An initial state
- B
A continuation condition
- C
A
breakstatement in every iteration - D
A progress step
05
Choose all
1 point
Which statements correctly describe continue inside a C++ for loop? Select all that apply.
- A
It skips the rest of the current iteration.
- B
It runs the
forupdate expression before the next condition test. - C
It exits every enclosing loop.
- D
It affects only the nearest enclosing loop.
06
True or false
1 point
True or false: In nested C++ loops, a break statement inside the inner loop exits both the inner and outer loops.
- A
True
- B
False
07
True or false
1 point
True or false: In for (int& value : values), assigning to value can modify the corresponding element in values.
- A
True
- B
False
08
Written response
1 point
Which C++ loop statement should you use when a menu must be displayed at least once before the program checks whether to continue?
09
Written response
1 point
In while (std::cin >> value && value != -1), what numeric value signals the end of input?
10
Fill in the blank
1 point
Complete the comparison: A while loop tests its condition the body, whereas a do-while loop tests its condition the body.
11
Fill in the blank
1 point
Complete both recommendations: To traverse a zero-based array by index safely, use the condition . In a range-based loop, use a when the loop must modify the original elements.
12
Open ended
1 point
Consider this C++ code:
int count = 1;
while (count <= 5) {
std::cout << count << '\n';
}
Explain the loop's error and provide a corrected version or a precise correction that makes it terminate after printing the intended sequence.
13
Choose one
1 point
How many times does the innermost output statement execute?
for (int row = 1; row <= 3; ++row) {
for (int column = 1; column <= 4; ++column) {
std::cout << '(' << row << ',' << column << ") ";
}
}
- A
7 times
- B
9 times
- C
12 times
- D
16 times
14
Choose one
1 point
Which statement correctly describes a C++ while loop?
- A
It always executes its body at least once.
- B
It may execute its body zero times.
- C
It can be used only with integer conditions.
- D
It automatically increments the variable in its condition.
15
True or false
1 point
A C++ do-while loop executes its body at least once, even when its condition is initially false.
- A
True
- B
False
16
Written response
1 point
Which C++ loop statement is the best choice when input must be repeatedly validated and the number of attempts is not known in advance?
17
Written response
1 point
How many times does the body execute in for (int i = 0; i < 5; ++i) { ... }?
18
Choose one
1 point
In a C++ for loop, what normally happens immediately after the loop body finishes and before the next condition test?
- A
The initialization expression runs again.
- B
The condition is skipped once.
- C
The update expression runs.
- D
The loop variable is destroyed before the condition test.
19
Choose one
1 point
Which loop condition safely traverses every element of a zero-based array with size elements exactly once?
- A
i < size - B
i <= size - C
i == size - D
i > size
20
Choose one
1 point
Consider for (int i = 1; i <= 10; ++i) { if (i % 2 == 0) { continue; } std::cout << i << ' '; }. What is the effect of continue when i is even?
- A
It terminates the entire loop immediately.
- B
It skips the remaining statements in the current iteration, then performs the update expression.
- C
It restarts the current iteration without evaluating the condition.
- D
It exits the nearest enclosing function.