- A
The uses directive is used to specify that a module provides a service implementation.
Why wrong: uses declares a service dependency; provides declares an implementation.
- B
A module can read another module only if it explicitly requires it.
Why wrong: Modules can also read other modules via requires transitive, and java.base is implicitly required.
- C
A qualified export allows access to the exported package only to specific modules.
Qualified exports restrict accessibility to a comma-separated list of module names.
- D
The requires directive can be used to specify a module that is optional.
Why wrong: Optional dependencies require the static modifier: requires static.
- E
The opens directive allows reflective access to all types and members in the opened package, including private members.
opens grants full reflective access at runtime, but not compile-time access.
1Z0-829 Java Platform Overview and Packaging Practice Question
This 1Z0-829 practice question tests your understanding of java platform overview and packaging. 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 two statements are true about Java module declarations? (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
A qualified export allows access to the exported package only to specific modules.
Option C is correct because a qualified export in a Java module declaration (using the 'exports ... to ...' syntax) restricts access to the exported package only to the specific modules listed after the 'to' keyword. This provides fine-grained control over which other modules can use the exported types, enhancing encapsulation and security.
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.
- ✗
The uses directive is used to specify that a module provides a service implementation.
Why it's wrong here
uses declares a service dependency; provides declares an implementation.
- ✗
A module can read another module only if it explicitly requires it.
Why it's wrong here
Modules can also read other modules via requires transitive, and java.base is implicitly required.
- ✓
A qualified export allows access to the exported package only to specific modules.
Why this is correct
Qualified exports restrict accessibility to a comma-separated list of module names.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The requires directive can be used to specify a module that is optional.
Why it's wrong here
Optional dependencies require the static modifier: requires static.
- ✓
The opens directive allows reflective access to all types and members in the opened package, including private members.
Why this is correct
opens grants full reflective access at runtime, but not compile-time access.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the 'uses' directive with 'provides' (Option A) and mistakenly think 'requires' can make a module optional (Option D), when in fact 'requires static' is for optional compilation, not runtime optionality.
Detailed technical explanation
How to think about this question
The 'opens' directive (Option E) allows deep reflection (including access to private members) at runtime, which is critical for frameworks like Hibernate or Spring that rely on reflection for dependency injection or ORM mapping. Without 'opens', reflective access is limited to public members of exported packages. Qualified exports (Option C) are often used in large modular applications to expose internal APIs only to trusted modules, preventing unintended coupling.
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 practitioner preparing for the 1Z0-829 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.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this 1Z0-829 question test?
Java Platform Overview and Packaging — This question tests Java Platform Overview and Packaging — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A qualified export allows access to the exported package only to specific modules. — Option C is correct because a qualified export in a Java module declaration (using the 'exports ... to ...' syntax) restricts access to the exported package only to the specific modules listed after the 'to' keyword. This provides fine-grained control over which other modules can use the exported types, enhancing encapsulation and security.
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: Jul 4, 2026
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