The correct answer is that operations 1 and 2 are allowed while operation 3 is denied. This outcome hinges on the crucial distinction between the two wildcard characters used in FilePermission within a Java security policy: the single asterisk `*` matches only files directly within the specified directory, whereas the hyphen `-` recursively matches all files and subdirectories beneath it. In the given grant, `/data/config/*` grants read access solely to files like `settings.xml` that reside immediately inside `/data/config`, but it does not cover `extra.conf` located in the `subdir/` subdirectory. The write permission to `/logs/app.log` is an exact match, so it succeeds. On the Oracle Certified Professional Java SE 17 Developer 1Z0-829 exam, this distinction is a frequent trap—candidates often assume `*` behaves like `-` and grants recursive access. Remember the mnemonic: “star stays shallow, hyphen goes deep.”
1Z0-829 Java I/O API and Securing Applications Practice Question
This 1Z0-829 practice question tests your understanding of java i/o api and securing applications. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Refer to the exhibit. A Java application is deployed in /opt/app/lib/ and attempts to perform the following operations:
1) Read the file /data/config/settings.xml
2) Write to the file /logs/app.log
3) Read the file /data/config/subdir/extra.conf
Which statement is true?
All three operations are allowed because the code base matches.
Why wrong: The wildcard * in "/data/config/*" does not include subdirectories, so extra.conf is not allowed.
B
Operations 1 and 2 are allowed; operation 3 is denied.
Operation 1 is allowed by "/data/config/*" (file in /data/config/). Operation 2 is explicitly granted. Operation 3 is in a subdirectory, not matched by *.
C
Only operation 1 is allowed; operations 2 and 3 are denied.
Why wrong: Operation 2 is explicitly allowed by the second permission, so it is allowed.
D
Operations 1 and 3 are allowed; operation 2 is denied.
Why wrong: Operation 3 is denied, and operation 2 is allowed.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Operations 1 and 2 are allowed; operation 3 is denied.
The grant applies to code from /opt/app/lib/* (all jars in that directory). The first FilePermission "/data/config/*" grants read access to /data/config/settings.xml but not to /data/config/subdir/extra.conf because * only matches files in the directory, not subdirectories. The second permission grants write to /logs/app.log exactly. So only operations 1 and 2 are allowed.
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.
✗
All three operations are allowed because the code base matches.
Why it's wrong here
The wildcard * in "/data/config/*" does not include subdirectories, so extra.conf is not allowed.
✓
Operations 1 and 2 are allowed; operation 3 is denied.
Why this is correct
Operation 1 is allowed by "/data/config/*" (file in /data/config/). Operation 2 is explicitly granted. Operation 3 is in a subdirectory, not matched by *.
Related concept
Read the scenario before looking for a memorised answer.
✗
Only operation 1 is allowed; operations 2 and 3 are denied.
Why it's wrong here
Operation 2 is explicitly allowed by the second permission, so it is allowed.
✗
Operations 1 and 3 are allowed; operation 2 is denied.
Why it's wrong here
Operation 3 is denied, and operation 2 is allowed.
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 1Z0-829 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.
What to study next
Got this wrong? Here's your next step.
Identify which 1Z0-829 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.
Java I/O API and Securing Applications — This question tests Java I/O API and Securing Applications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Operations 1 and 2 are allowed; operation 3 is denied. — The grant applies to code from /opt/app/lib/* (all jars in that directory). The first FilePermission "/data/config/*" grants read access to /data/config/settings.xml but not to /data/config/subdir/extra.conf because * only matches files in the directory, not subdirectories. The second permission grants write to /logs/app.log exactly. So only operations 1 and 2 are allowed.
What should I do if I get this 1Z0-829 question wrong?
Identify which 1Z0-829 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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