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Oracle 1Z0-900 valid study dumps : Java EE 7 Application Developer
- Exam Code: 1Z0-900
- Exam Name: Java EE 7 Application Developer
- Updated: Sep 11, 2026
- Q&As: 142 Questions and Answers
About Oracle Java EE 7 Application Developer - 1Z0-900 Valid Dumps
Professional exams deserve professional preparation. The Oracle Java EE 7 Application Developer package at ValidDumps delivers 142 verified 1Z0-900 practice questions with the one-stop service to match: demo before you buy, support after you do.
Oracle 1Z0-900 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java EE 7 Application Developer |
| Exam Number: | 1Z0-900 |
| Related Certifications: | Oracle Certified Professional, Java EE 7 Application Developer |
| Available Languages: | English |
| Real Exam Qty: | 70 |
| Exam Duration: | 120 minutes |
| Exam Price: | USD around 200–250 (varies by region) |
| Certificate Validity Period: | Not officially specified (recertification or upgrade to current versions recommended) |
| Exam Format: | Multiple choice |
| Passing Score: | 66% |
| Sample Questions: |  |
| Exam Way: | Online proctored or at authorized Pearson VUE testing centers. |
| Pre Condition: | Recommended Java SE experience and hands-on programming; formal training in Java EE technologies is advised. |
| Official Syllabus URL: | https://education.oracle.com/java-ee-7-application-developer/pexam_1Z0-900 |
Oracle 1Z0-900 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Web Applications | - Servlets and HTTP handling - JSP and Expression Language |
| Topic 2: Enterprise JavaBeans (EJB) | - Session EJB components and business logic - EJB transactions and timers |
| Topic 3: REST and WebSockets | - WebSockets applications - RESTful services using JAX-RS |
| Topic 4: Security and Additional APIs | - Declarative and programmatic security - Contexts & Dependency Injection (CDI) - Concurrency and Batch APIs |
| Topic 5: Messaging and Web Services | - Java Message Service (JMS) - SOAP services with JAX-WS and JAXB |
| Topic 6: Persistence and JPA | - JPA entities and object-relational mapping - Entity management, transactions and JPQL |
| Topic 7: JavaServer Faces (JSF) | - JSF lifecycle and view handling - JSF components and navigation |
| Topic 8: Java EE Architecture | - Overview of Java EE 7 standards, containers, APIs and services - Component model interactions |
Your Oracle Java EE 7 Application Developer Questions, Answered Honestly
Oracle Java EE 7 Application Developer is an official Oracle certification exam, registered under the code 1Z0-900. Passing it earns the Java EE and Web Services certification, positioned at the Professional level. It also connects to Oracle Certified Professional, Java EE 7 Application Developer. Professional work increasingly demands professional proof, and this exam supplies exactly that.
The Oracle Java EE 7 Application Developer exam contains 70 questions to be answered within 120 minutes. The candidates who struggle most are rarely the least knowledgeable; they are the least rehearsed at time allocation. Practice full timed sessions in the ValidDumps engine, learn to flag and move on, and the official clock becomes a familiar companion instead of a threat.
Oracle Java EE 7 Application Developer requires 66% to pass, and official registration costs USD around 200–250 (varies by region). Since a retake bills the full USD around 200–250 (varies by region) again, confirming readiness first is simply good economics. Run repeated scored sessions with the ValidDumps practice tests and schedule the exam once the passing line sits comfortably below your typical result.
Recommended Java SE experience and hands-on programming; formal training in Java EE technologies is advised.
Vendor policies do change, so verify the current requirements before you register via the official exam page.
Yes. ValidDumps offers a free demo of the Oracle Java EE 7 Application Developer questions as part of its pre-sale service, so you can evaluate quality before choosing among the three versions. After purchase, updates are free for 365 days, and when your product expires you can extend the update service at a 50% discount.
A 100% money-back guarantee protects your purchase under clear conditions. Take the Oracle Java EE 7 Application Developer exam within 60 days of purchase; if you fail, you may claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. You may also choose an exchange: two other exam products of equal value, free, with the update service on your original purchase kept.
Delivery is instant: files unlock for download at payment and are emailed within one minute. If nothing arrives within 2 hours, check spam and contact customer service, available 24 hours. Installation is unlimited across your computers.
Oracle Java EE 7 Application Developer covers 8 official domains. The largest include Java EE Architecture, Persistence and JPA, and REST and WebSockets. The full breakdown is in the topics section above; review it first and your study plan practically writes itself.
Oracle Java EE 7 Application Developer Sample Questions:
Question #1
You need to develop a chat application, which allows the display of emoticons and images together with text messages.
How should you configure a WebSocket endpoints to receive both text and binary messages?
- A. Define the @onMessage methods in your endpoint with Object as parameter and check the actual type in your code.
- B. You can achieve this only by creating separate WebSocket endpoints for each message type.
- C. Create two @onMessage methods in the same endpoint with appropriate parameter types.
- D. Create two @onMessage methods, each with appropriate decoder attribute in the same endpoint.
Answer: D
Question #2
Your client wants certain inventory items of high importance to be counted periodically to improve the average level of inventory accuracy.
What type of counting would you recommend?
- A. Serialized Count
- B. Cycle Count
- C. Zero Quantity Count
- D. Blind Count
- E. Manual Count
- F. Physical Count
Answer: B
Question #3
Given the code fragments:
Which action completes this composite primary key implementation?
- A. Add @Embeddable annotation at line 1 and @EmbeddedId(ContactId.class) at line 2.
- B. Add @IdClass annotation at line 1.
- C. Add @IdClass(ContactId.class) annotation at line 2.
- D. Add @Embeddable annotation at line 1 and replace both @Id annotations with @EmbeddedId annotations.
Answer: A
Question #4
Your customer has two warehouses (Inventory organizations) located in two different regions. They have a consigned agreement in place with the supplier. Your customer requests that whenever consumption advice is created, it should be created separately for each inventory organization.
What setup is required to achieve this requirement?
- A. Set Consumption Advice Summary in Consignment Agreement to "Organization'.
- B. This cannot be achieved because only one common consumption advice is created regardless of other parameters.
- C. Set Consumption Advice Summary in Consignment Agreement to "All Organizations".
- D. Set Consumption Advice Summary in Consignment Agreement to "All Organizations with items".
Answer: A
Question #5
Given the code fragment:
When
the context root is requested http://host:port/context, how does the container resolve this mapping?
- A. The container throws an error at startup.
- B. secondServlet handles the request.
- C. firstServlet handles the request.
- D. thirdServlet handles the request.
Answer: A
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