Question 490 of 513
1Z0-829 Java I/O API and Securing Applications Practice Question
Which TWO statements are true about securing a Java application?
⚠ Common exam trap
Candidates often confuse the optional nature of the SecurityManager (thinking it is mandatory) or assume code signing implies security, when in fact it only provides integrity and origin verification, not safety.
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 security policy file can grant specific permissions to code from a particular codebase.
A Java security policy file can use a codebase URL (e.g., `codeBase "file:/path/to/jar"`) to grant specific permissions, such as `java.io.FilePermission`, to code loaded from that location. This is a core feature of the Java security model, allowing fine-grained access control based on where the code originates.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A security policy file can grant specific permissions to code from a particular codebase.
Why this is correct
Policy files allow granular permission assignments.
- ✗
Enabling the security manager is required for all Java applications.
Why it's wrong here
Security manager is optional; many applications run without it.
- ✗
The Java Cryptography Extension (JCE) is deprecated and should not be used.
Why it's wrong here
JCE is still part of Java SE and not deprecated.
- ✗
Using code signing guarantees that the application is secure.
Why it's wrong here
Code signing verifies origin but does not enforce security policy.
- ✓
The SecurityManager class can be used to set a security policy for the application.
Why this is correct
SecurityManager enforces access controls based on policy.
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Last reviewed: Jun 11, 2026
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