Oracle Exam 1z0-900 Questions Answers Test Simulator

1z0-900 Exam Topics

Understand Java EE Architecture

• Describe Java EE 7 standards, containers, APIs, and services
• Differentiate between application component functionalities as they apply to different tiers and containers, including Java EE Web Container, Business Logic implementation and WebServices
• Create, package and deploy Java EE application
• Demonstrate understanding of Enterprise JavaBeans and CDI beans, their lifecycle and memory scopes
• Demonstrate understanding of the relationship between bean components, annotations, injections, and JNDI

Manage Persistence using JPA Entities and BeanValidation

• Create JPA Entity and Relationship Object-Relational Mappings (ORM)
• Use Entity Manager to perform database operations, transactions and locking with JPA entities
• Handle entity data with conversions, validations, and key generation
• Create and execute JPQL statements

Implement Business Logic by Using EJBs

• Create session EJB components containing synchronous and asynchronous business methods, manage the life cycle container callbacks and use interceptors
• Demonstrate understanding of how to control EJB transactions, distinguish Container Managed (CMT) and Bean Managed (BMT) transactions
• Create EJB timers

Use Java Message Service API

• Describe the Java Message Service (JMS) messaging models and implement Java SE and Java EE message producers and consumers, including Message-Driven beans
• Use transactions with JMS API

Implement SOAP Services by Using JAX-WS and JAXB APIs

• Create SOAP Web Services and Clients using JAX-WS API
• Define Java to XML Schema mappings to marshall and unmarshall Java Objects by using JAXB API

Create Java Web Applications using Servlets

• Create Java Servlets, describe how they are mapped to urls and use HTTP methods
• Handle HTTP headers, parameters, cookies
• Manage servlet life cycle with container callback methods and WebFilters

Create Java Web Applications using JSPs

• Describe JSP life cycle
• Describe JSP syntax, use tag libraries and Expression Language (EL)
• Handle errors using Servlets and Java Server Pages

Implement REST Services using JAX-RS API

• Understand and Apply REST service conventions
• Create REST Services and clients using JAX-RS API

Create Java Applications using WebSockets

• Understand and utilise WebSockets communication style and lifecycle
• Create WebSocket Server and Client Endpoint Handlers using JSR 356 API and JavaScript
• Produce and consume, encode and decode WebSocket messages

Develop Web Applications using JSFs

• Describe JSF arcitecture, lifecycle and navigation
• Understand JSF syntax and use JSF Tag Libraries
• Handle localisation and produce messages
• Use Expression Language (EL) and interact with CDI beans

Secure Java EE 7 Applications

• Describe Java EE declarative and programmatic security and configure authentication using application roles and security constraints and Login Modules
• Describe WebServices security standards

Use CDI Beans

• Create CDI Bean Qualifiers, Producers, Disposers, Interceptors, Events and Stereotypes

Use Concurrency API in Java EE 7 Applications

• Demonstrate understanding of Java Concurrency Utilities and use Managed Executors

Use Batch API in Java EE 7 Applications

• Describe batch jobs using JSL XML documents and JSR 352 API

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