Oracle Java EE 6 Enterprise Architect Certified Master - 1Z0-807 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

A company wants to design an internal website for the purpose of managing its numerous social events. The site will not have heavy traffic, but will require state to be persisted in a database. You have been tasked to complete this action item in your spare time.
Which two Java EE-based approaches are best suited for quick development?

A. Use message-driven beans to manage the posting of events. B. Use an Enterprise javaBeans (EJB) container to service-inject the domain model and support a JPA deployment. C. Useyourdomain modelcomponents as JavaServer Faces (JSF) managed beans. D. Use JPAin the web tier only.

Discussion 0

Correct Answer: C,D Vote an answer

Question 2

Which two statements are true about security strategies at the message-level?

A. Each portion of a compound message is secured. B. Message attachments are secured without the need for a dedicated API. C. Security is dependent on the application environment or the transport protocol. D. SSL is required to ensure authenticity, integrity, and confidentiality.

Discussion 0

Correct Answer: A,B Vote an answer

Question 3

Which two features are supported by the Java Authentication and Authorization Service (JAAS) API?

A. Secure network connections B. Message encryption and key generation C. Configurable access control policies D. Web services security

Discussion 0

Correct Answer: A,D Vote an answer

Question 4

Your web page design company is designing websites for all the stores in a local mall. Your company must create a consistent "look and feel" for these sites.
After this "look and feel- project has gone through demonstration, enhancement and approval iterations with the mall's .lions, you job is complete and the development of the actual B2C (Business -to-Client) system will be handled by a different firm
Which architecture is most appropriate for your prototype project?

A. Three, web-centric B. Three-tier, enterprise-centric C. Two tier, web-centric D. Three-tier, application-centric

Discussion 0

Correct Answer: C Vote an answer

Question 5

You are consulting with a team that has maintained several legacy database for years. They have reviewed the JPA spec and are wondering if the technology would offer benefits over this current SQL base.
Which statement identifies a risk of adopting JPA?

A. JPA only works with well-known data models. B. JPA may be able to model every table as a class. C. JPA doesn't provides ACID semantics. D. JPA could render code that requires extensive SQL tuning to perform well. E. JPA's query languagerelies on a container to manage the persistence layer.

Discussion 0

Correct Answer: D Vote an answer

Question 6

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.

A. Schedule regular penetration testing. B. Log all security related application events. C. Treat users as untrusted even when authenticated. D. Use both programmatic and declarative security. E. Encrypt data, both on the wire and at rest. F. Implement an exception-handling strategy.

Discussion 0

Correct Answer: B,D,F Vote an answer

Question 7

You are the architect of a web application that uses javaServer Faces (JSF) as a presentation tier;
and for business processes coded as stateless session beans. When you add new code to the stateless session beans to address new accounting requirements, without changing the interface, you discover that the new business processes are being ignored by some of the JSF components.
What might be the cause of this problem?

A. The new session beans have been deployed incorrectly, and proper deployment will resolve the problem. B. The business processes are not rigorously encapsulated in the session beans. C. The browser is caching out-of-date versions of the JSF components. D. The presentation tier is relying on validation logic in the business tier.

Discussion 0

Correct Answer: B Vote an answer

Question 8

You are the operations architect for a large online retailer. During peak times, your set of monitored applications exhibits non-reproducible errors. The data center is growing at 50% per annum, while your team headcount remains constant.
Which method would you use to implement an affective monitoring strategy?

A. Use the Thread Tracker to monitor the JVMs directly. B. Use the Visitor pattern to collect per-JVM statistics and store them centrally. C. Use the Strategy pattern to encapsulate collection logic for each JVM. D. Use the Observer patternto monitor each JVM directly.

Discussion 0

Correct Answer: D Vote an answer

Question 9

Oasis Corporation has decided to develop a single Instance multi-tiered application with its existing EIS resources. You are the technical lead for the Integration team responsible for providing the following:
-A common Interface that can easily access theheterogeneous EIS resources -Generictransaction mechanismsupport for EIS resource managers -Aconnectionpool tolegacy EIS resources
Which two technologies would you use to meet these requirements?

A. JMS B. JAX-WS C. JDBC D. JCA E. JAX-RS

Discussion 0

Correct Answer: C,D Vote an answer