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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The app.jar depends on java.base implicitly.
Option D is correct because every Java module automatically has an implicit dependency on the `java.base` module, which is always resolved by the module system. The `jdeps` command analyzes dependencies, and even if no explicit `requires java.base` is declared, the module system adds it implicitly. This is a fundamental rule of the Java Platform Module System (JPMS) as defined in JSR 376.
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 app.jar has a direct dependency on the class com.thirdparty.util.
Why it's wrong here
jdeps summary shows module-level, not class-level dependencies.
✗
The modular dependency com.thirdparty.helper is not required because it is modular.
Why it's wrong here
Modular dependencies are still required.
✗
The dependencies on com.thirdparty.util and com.thirdparty.helper are on the module path.
Why it's wrong here
The exhibit shows -cp for classpath, so they are on classpath.
✓
The app.jar depends on java.base implicitly.
Why this is correct
All Java applications implicitly depend on java.base.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Oracle often tests the implicit dependency on `java.base` to catch candidates who think all module dependencies must be explicitly declared in `module-info.java`.
Trap categories for this question
Command / output trap
jdeps summary shows module-level, not class-level dependencies.
Detailed technical explanation
How to think about this question
Under the hood, `jdeps` uses bytecode analysis to scan class files for references to packages and modules. The implicit dependency on `java.base` is enforced by the module system at compile time and runtime; if a module does not explicitly `requires java.base`, the compiler still adds it automatically. In real-world scenarios, forgetting this implicit dependency can lead to confusion when analyzing module graphs, especially when using tools like `jlink` to create custom runtime images.
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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: The app.jar depends on java.base implicitly. — Option D is correct because every Java module automatically has an implicit dependency on the `java.base` module, which is always resolved by the module system. The `jdeps` command analyzes dependencies, and even if no explicit `requires java.base` is declared, the module system adds it implicitly. This is a fundamental rule of the Java Platform Module System (JPMS) as defined in JSR 376.
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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Question Discussion
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