Oracle Java EE 7 Application Developer (1Z0-900) Practice Test
Build your confidence for Oracle Java EE 7 Application Developer (1Z0-900). Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
The Oracle Java EE 7 Application Developer (1Z0-900) certification validates a developer's comprehensive ability to design, build, and deploy enterprise applications using the Java Platform, Enterprise Edition 7. This professional credential demonstrates mastery of core Java EE technologies including CDI for dependency injection, EJB for business logic encapsulation, JAX-RS for RESTful web services, JPA for object-relational mapping, and JSF for component-based web UIs. Achieving this certification signifies that a professional can architect robust, scalable, and maintainable solutions that adhere to Java EE standards and best practices. In today's enterprise landscape, where businesses rely on complex, distributed systems, this certification serves as a benchmark for technical proficiency and a commitment to industry-standard development methodologies. It bridges the gap between foundational Java knowledge and the specialized skills required for enterprise-grade application development, making certified individuals valuable assets in organizations building mission-critical software.
Sample Questions
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In a hospital scheduling application running on Java EE 7, the team is reviewing a Java EE 7 implementation for durable subscription. The last release passed unit tests but failed during clustered deployment. Which option best matches the Java EE 7 exam objective while avoiding the most likely design trap?
In a hospital scheduling application running on Java EE 7, the team is reviewing a Java EE 7 implementation for principal access. A compliance review requires the fix to use portable Java EE APIs. Which option best matches the Java EE 7 exam objective while avoiding the most likely design trap?
In a logistics company's Java EE 7 shipment platform, the team is reviewing a Java EE 7 implementation for passivation. The team must change the design without replacing the application server. Which option best matches the Java EE 7 exam objective while avoiding the most likely design trap?
In a logistics company's Java EE 7 shipment platform, the team is reviewing a Java EE 7 implementation for MTOM. The last release passed unit tests but failed during clustered deployment. Which option best matches the Java EE 7 exam objective while avoiding the most likely design trap?
In a hospital scheduling application running on Java EE 7, the team is reviewing a Java EE 7 implementation for BatchRuntime. The last release passed unit tests but failed during clustered deployment. Which option best matches the Java EE 7 exam objective while avoiding the most likely design trap?
Career Opportunities & Salary
Exam insights and study advice
This certification matters because it provides tangible, vendor-backed validation of your enterprise Java skills, directly enhancing your professional credibility and marketability. In competitive job markets, it distinguishes you as a developer with proven, standardized expertise in a widely adopted enterprise platform. For organizations, hiring certified Java EE developers reduces project risk by ensuring team members possess a consistent, high-level understanding of architecture patterns and APIs. The certification aligns with real-world development roles, such as Enterprise Java Developer, Application Architect, or Backend Services Developer, and is often recognized or required by major corporations and government contracts. It represents not just knowledge, but the practical ability to apply that knowledge to build secure, transactional, and integrated business applications, which is fundamental to career advancement in enterprise software development.