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Updated: Jul 30, 2026
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Oracle 1Z0-355 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Java Platform, Enterprise Edition 6 Java Persistence API Developer Certified Professional Exam |
| Exam Number: | 1Z0-355 |
| Exam Price: | $245 USD |
| Exam Duration: | 150 minutes |
| Available Languages: | English |
| Certificate Validity Period: | Does not expire (legacy Oracle certification policy) |
| Passing Score: | 64% |
| Related Certifications: | Oracle Certified Professional, Java EE 6 Web Services Developer Oracle Certified Expert, Java EE 6 Java Persistence API Developer |
| Exam Format: | Multiple Choice, Multiple Response |
| Real Exam Qty: | 60 |
| Recommended Training: | Oracle University Java EE Training |
| Exam Registration: | Oracle Certification Registration |
| Exam Way: | Computer-based exam (test center or online proctored depending on Oracle policies) |
| Pre Condition: | Basic knowledge of Java EE 6 platform and relational database concepts is recommended |
| Official Syllabus URL: | https://education.oracle.com/ |
Oracle 1Z0-355 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Transactions and Concurrency | - Transaction management in JPA - Locking mechanisms (optimistic and pessimistic locking) |
| JPA Architecture and Fundamentals | - Persistence units and persistence.xml configuration - JPA specification overview and components - Entity lifecycle and entity states |
| Advanced JPA Features | - Caching (first-level and second-level cache concepts) - Entity callbacks and listeners - Validation integration |
| Entity Manager and Persistence Context | - Persistence context types and behavior - EntityManager operations (persist, merge, remove, find) |
| Queries and Data Retrieval | - Criteria API basics - JPQL (Java Persistence Query Language) - Named queries and dynamic queries |
| Object-Relational Mapping (ORM) | - Inheritance mapping strategies - Relationships (OneToOne, OneToMany, ManyToOne, ManyToMany) - Entity mapping annotations |
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