Question 1easymultiple choice
Full question →- A
NullPointerException
Why wrong: Unchecked.
- B
ArrayIndexOutOfBoundsException
Why wrong: Unchecked.
- C
SQLException
Checked exception.
- D
IllegalArgumentException
Why wrong: Unchecked.
Question 8 of 509
1Z0-829 Handling Exceptions Practice Question
This 1Z0-829 practice question tests your understanding of handling exceptions. 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.
Which of the following is a checked exception in Java?
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
✓
SQLException
SQLException is a checked exception because it extends Exception directly (not RuntimeException). Checked exceptions must be either caught with a try-catch block or declared in the method signature using 'throws'. SQLException is thrown by JDBC API methods when database access errors occur, forcing the developer to handle potential SQL failures at compile time.
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.
- ✗
NullPointerException
Why it's wrong here
Unchecked.
- ✗
ArrayIndexOutOfBoundsException
Why it's wrong here
Unchecked.
- ✓
SQLException
Why this is correct
Checked exception.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
IllegalArgumentException
Why it's wrong here
Unchecked.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse all exception subclasses of Exception as checked, forgetting that RuntimeException and its subclasses are unchecked, and thus incorrectly select unchecked exceptions like NullPointerException or IllegalArgumentException.
Detailed technical explanation
How to think about this question
Under the hood, Java's exception hierarchy splits at Throwable into Error and Exception. RuntimeException and its subclasses are unchecked, meaning the compiler does not enforce catch-or-specify. Checked exceptions like SQLException are part of the Exception branch but not RuntimeException, forcing developers to handle recoverable conditions such as database connection failures. In real-world JDBC code, failing to handle SQLException leads to compilation errors, ensuring robust error recovery in data access layers.
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.
TExam Day Tips
- 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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 1Z0-829 question test?
Handling Exceptions — This question tests Handling Exceptions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: SQLException — SQLException is a checked exception because it extends Exception directly (not RuntimeException). Checked exceptions must be either caught with a try-catch block or declared in the method signature using 'throws'. SQLException is thrown by JDBC API methods when database access errors occur, forcing the developer to handle potential SQL failures at compile time.
What should I do if I get this 1Z0-829 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This 1Z0-829 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 1Z0-829 exam.
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