- A
Use the break statement to exit early based on a precomputed value
Why wrong: Break does not reduce the number of condition calculations; it only exits early.
- B
Move the inner loop's condition calculation outside the outer loop
By storing the result of the costly method in a variable before the inner loop, the method is called only once per outer iteration.
- C
Convert the loops to recursive calls
Why wrong: Recursion would likely increase overhead and complexity, not improve performance.
- D
Change the inner loop to use a while loop
Why wrong: A while loop still evaluates the condition each iteration; this does not reduce the costly method call.
Question 274 of 509
Loop Performance: Avoid Recalculating Condition
This 1Z0-811 practice question tests your understanding of control flow and loops. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer is troubleshooting a performance issue in a reporting application. A nested loop iterates over a large dataset: the outer loop processes each row, and the inner loop performs a complex computation on each column. The application is taking longer than expected. Upon reviewing the code, the developer notices that the inner loop's termination condition is recalculated each iteration, which involves a costly method call. Which optimization should the developer implement to improve performance?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Move the inner loop's condition calculation outside the outer loop
Option B is correct because moving the condition calculation outside the outer loop (e.g., storing the result of the costly method call in a variable before the inner loop) eliminates redundant calls, improving performance. Option A is incorrect because using a break statement based on a precomputed value would not address the condition recalculation; the break would exit early but the condition is still recalculated each iteration unless moved outside. Option C is incorrect because converting to recursive calls would typically add overhead (stack frames) and is not a performance optimization for this specific issue. Option D is incorrect because simply changing to a while loop does not change the fact that the condition is recalculated each iteration; the costly method call would still be made each time unless the limit is precomputed.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use the break statement to exit early based on a precomputed value
Why it's wrong here
Break does not reduce the number of condition calculations; it only exits early.
- ✓
Move the inner loop's condition calculation outside the outer loop
Why this is correct
By storing the result of the costly method in a variable before the inner loop, the method is called only once per outer iteration.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Convert the loops to recursive calls
Why it's wrong here
Recursion would likely increase overhead and complexity, not improve performance.
- ✗
Change the inner loop to use a while loop
Why it's wrong here
A while loop still evaluates the condition each iteration; this does not reduce the costly method call.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 1Z0-811 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which 1Z0-811 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Control Flow and Loops — study guide chapter
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FAQ
Questions learners often ask
What does this 1Z0-811 question test?
Control Flow and Loops — This question tests Control Flow and Loops — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Move the inner loop's condition calculation outside the outer loop — Option B is correct because moving the condition calculation outside the outer loop (e.g., storing the result of the costly method call in a variable before the inner loop) eliminates redundant calls, improving performance. Option A is incorrect because using a break statement based on a precomputed value would not address the condition recalculation; the break would exit early but the condition is still recalculated each iteration unless moved outside. Option C is incorrect because converting to recursive calls would typically add overhead (stack frames) and is not a performance optimization for this specific issue. Option D is incorrect because simply changing to a while loop does not change the fact that the condition is recalculated each iteration; the costly method call would still be made each time unless the limit is precomputed.
What should I do if I get this 1Z0-811 question wrong?
Identify which 1Z0-811 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 23, 2026
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