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1z0-807 Exam Dumps - Java EE 6 Enterprise Architect Certified Master Exam

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Question # 4

Your company has decided to expose a set of business operations through an API so that clients can access them remotely. These operations, which are modeled as methods on a stateless session bean component, act as building blocks for complex state-changing activities that need to possess atomicity,, consistency, isolation and durability (ACID) semantics.

Select the best technology to implement the API.

Remote Method Invocation (RMI)

Java Message Service (JMS)

XML over HTTP

Java Connector Architecture (JCA)

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Question # 5

You are the architect for XYZ bank. XYZ is redesigning their online banking offering and you need to ensure that the new design follows security best practices for the JEE platform.

Select three security best practices for JEE applications.

Schedule regular penetration testing.

B. Log all security related application events.

C. Implement an exception-handling strategy.

Encrypt data, both on the wire and at rest.

E. Use both programmatic and declarative security.

Treat users as untrusted even when authenticated.

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Question # 6

You have been recruited by an online retailer of footwear to conduct a review of their online systems. Your primary Finding is that the development team has implemented duplicated complex business logic as Java scripts directly into the JSPs, causing performance, scalability, and maintainability issues.

Which two design patterns would you select to improve the current code base?

View Helper

B. From Controller

Composite View

D. Service-to-Worker

Business Delegate

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Question # 7

Which two statements are true about delegation as an Object-Oriented Design technique?

It is applied to a system only at compile time.

It is an essential element of the Singleton pattern.

C. It allows you to replace Inheritance with composition.

In Java technology, it is always implemented through the use of generics.

E. It always requires that at least two objects are involved in handling a request.

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Question # 8

YourDocs is an application that retrieves PDF documents of selected topics from both trusted and untrusted websites. It has been developed using a non-Java technology. You are designing your Mlearn, a mobile-based e-learning application, which will be implemented in Java. You plan to integrate YourDocs with your application.

Which web service technology would you choose to Integrate YourDocs into the YourMLearn application?

JAX-WS

JAX-WS with REST

JAX-RPC

JAX-RS

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