- A
Use System.out.println statements
Why wrong: Print statements require code changes and recompilation, and they may not always capture the exact moment of the exception.
- B
Use a debugger to step through code
A debugger allows setting breakpoints and stepping through code to inspect variable values and find where the null reference occurs.
- C
Examine the stack trace
The stack trace shows the method call hierarchy and line numbers, directly pinpointing the null reference.
- D
Recompile with -g flag
Why wrong: The -g flag adds debugging information to class files, but by itself it does not identify the source; it only improves stack trace output.
- E
Catch the exception and print its message
Why wrong: Catching the exception and printing its message only shows the exception type and message, not the exact location.
1Z0-811 Exception Handling and Development Tools Practice Question
This 1Z0-811 practice question tests your understanding of exception handling and development tools. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 debugging a Java application that throws a NullPointerException. Which two actions help identify the source of the exception? (Choose two.)
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
Use a debugger to step through code
Examining the stack trace (option A) shows the exact line number where the exception occurred, and using a debugger (option D) allows stepping through code to see variable states. While System.out.println (B) and catching the exception (C) can be helpful, they are less efficient and don't provide the precise location as directly. Recompiling with -g (E) adds debug info but is not an action to identify the source; it's a prerequisite for better stack traces.
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 System.out.println statements
Why it's wrong here
Print statements require code changes and recompilation, and they may not always capture the exact moment of the exception.
- ✓
Use a debugger to step through code
Why this is correct
A debugger allows setting breakpoints and stepping through code to inspect variable values and find where the null reference occurs.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Examine the stack trace
Why this is correct
The stack trace shows the method call hierarchy and line numbers, directly pinpointing the null reference.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Recompile with -g flag
Why it's wrong here
The -g flag adds debugging information to class files, but by itself it does not identify the source; it only improves stack trace output.
- ✗
Catch the exception and print its message
Why it's wrong here
Catching the exception and printing its message only shows the exception type and message, not the exact location.
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.
Trap categories for this question
Command / output trap
The -g flag adds debugging information to class files, but by itself it does not identify the source; it only improves stack trace output.
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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Exception Handling and Development Tools — study guide chapter
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FAQ
Questions learners often ask
What does this 1Z0-811 question test?
Exception Handling and Development Tools — This question tests Exception Handling and Development Tools — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use a debugger to step through code — Examining the stack trace (option A) shows the exact line number where the exception occurred, and using a debugger (option D) allows stepping through code to see variable states. While System.out.println (B) and catching the exception (C) can be helpful, they are less efficient and don't provide the precise location as directly. Recompiling with -g (E) adds debug info but is not an action to identify the source; it's a prerequisite for better stack traces.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 23, 2026
This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.
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