Java EE 7 Application Developer (1Z0-900)

Exam Overview

The Oracle 1Z0-900: Java EE 7 Application Developer certification exam is designed for enterprise Java developers who want to validate their expertise in developing and deploying applications using Java Enterprise Edition 7 technologies. This professional-level certification tests candidates' ability to build robust, secure, and scalable enterprise applications following Java EE 7 specifications and best practices.

Exam Information

This certification focuses on the core and advanced Java EE 7 technologies including Enterprise JavaBeans, JavaServer Faces, Java Persistence API, Contexts and Dependency Injection, RESTful web services, and more. The 1Z0-900 validates a developer's ability to architect and implement enterprise-scale applications using the Java EE 7 platform and its associated frameworks.

Key Topics Covered

Java EE 7 architecture and design patterns
Web application development using Servlets and JSF
Enterprise application components with EJB
Data persistence using JPA
Dependency injection with CDI
RESTful and SOAP web services
Bean validation
Application security
Messaging with JMS
Batch processing
Concurrency utilities

Target Audience

This exam is ideal for:

Enterprise Java developers
Java application architects
Backend developers working with Java EE
Software engineers building enterprise systems
IT professionals specializing in Java technologies
Web service developers
Full-stack Java developers

Exam Format

Multiple-choice and multiple-select questions
80 questions
Time limit: 150 minutes (2.5 hours)
Passing score: 65% (65 out of 100)
Proctored examination environment
Available in multiple languages

Skills Measured

Java EE 7 Foundations (20%)

Understand Java EE architecture
Apply design patterns and components
Use CDI and bean validation
Implement security features
Handle exceptions in Java EE

Web Applications with Servlets and JSF (20%)

Create dynamic web pages with Servlets
Use JavaServer Faces for UI development
Manage HTTP sessions
Implement filters and listeners
Handle web application security

Enterprise JavaBeans (15%)

Develop stateless and stateful session beans
Implement message-driven beans
Apply transaction management
Use EJB Timer Service
Configure EJB security

Persistence with JPA (15%)

Map entities to database tables
Create and manage EntityManager
Develop JPQL and Criteria API queries
Implement entity relationships
Handle JPA lifecycle events

Web Services (15%)

Create RESTful web services with JAX-RS
Implement SOAP web services with JAX-WS
Process XML and JSON in web services
Handle web service security
Apply exception handling in web services

Enterprise Applications (15%)

Develop with JMS for messaging
Implement batch processing with Batch API
Use Java EE Concurrency Utilities
Create asynchronous applications
Develop WebSocket-based applications

Preparation Resources

Oracle University training courses
Official Java EE 7 documentation
Oracle Java EE certification study guides
Practice tests and exam simulations
Enterprise Java programming courses
Hands-on development projects
Community forums and study groups