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Code d'Examen: 1Z0-543
Nom d'Examen: Oracle (Oracle Application Integration Architecture 11g Essentials)
Questions et réponses: 70 Q&As
Code d'Examen: 1Z0-550
Nom d'Examen: Oracle (JD Edwards EnterpriseOne 9 Configurable Network Computing Essentials)
Questions et réponses: 77 Q&As
Code d'Examen: 1Z0-868
Nom d'Examen: Oracle (Java Enterprise Edition 5 Enterprise Architect Certified Master Upgrade Exam)
Questions et réponses: 144 Q&As
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NO.1 You are architecting a new Internet-deployed application and you want to restrict access to parts of the
system for security purposes. Which three security restrictions can be specified in the deployment
descriptor according to the servlet API specification standards? (Choose three.)
A. on page forwarding
B. on encryption methods
C. based on the role name
D. based on the user name
E. based on the URL pattern
F. based on the HTTP method
Answer: C,E,F
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NO.2 You are designing a company e-Commerce site. The site will be hosted on a single powerful server
that has sufficient CPU, memory, storage, and network bandwidth so that clustering is not needed. The
architecture must maintain session state including a shopping cart and recent searches. JSP and JPA
have already been selected as the presentation tier and persistence tier implementations, respectively.
What do you recommend as the most appropriate way to maintain session state in the application?
A. an entity bean
B. stateful session beans
C. the HttpSession object
D. a message-driven bean
Answer: C
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NO.3 A successful web application is used by over two hundred thousand users. Due to this substantial load,
the database is overburdened and fails frequently. All data, including critical user records and temporary
session data, are stored in the database. Because of resource constraints, a new database system
cannot be installed. Which change will reduce the load on the database?
A. create more entity beans to optimize the interaction with the database
B. refactor the web application to use DAOs to communicate with the database
C. refactor the web application to store temporary session data on the web servers
D. add more web servers to the web tier to distribute the load and reduce the number of
transactions on the database
Answer: C
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NO.4 An existing web application uses JSPs to communicate directly to a database. Small changes to the
database result in business logic changes to many JSPs. The single JSP developer, who was also the
graphic artist, has just quit the project. In addition, the company needs to add a web services-based
interface to the application. You have been hired as the architect to refactor the web application. Which
two changes should you make to accomplish this? (Choose two.)
A. introduce a separate presentation layer with different views for HTML and XML
B. add an abstraction layer between the database and JSPs to encapsulate business logic
C. develop a DAO layer to encapsulate the database access that can be used by all the JSPs
D. add new JSPs for the XML and use <jsp:include> to incorporate the existing business logic
Answer: A,B
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NO.5 A company architected and developed a Java EE application and now they are having problems with
the scalability of the system. The application uses JSPs and servlets deployed to a web container, and
stateless session beans and DAOs deployed to an EJB container. The application's non-functional
requirement for scalability is to support 500 concurrent users during peak hours of operation. The
application can currently support 500 concurrent users, but the response time is 200 percent of what it is
acceptable. You have been hired as an architect and have been assigned to help resolve this problem.
The company's management is concerned with the hardware budgeting. What initial advice would you
give to the company?
A. add another web server
B. start a new project to re-architect the application
C. monitor the application to determine the potential problem areas
D. add more memory and processors to the hardware hosting the EJB container
Answer: C
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NO.6 DRAG DROP
Answer:
NO.7 A Java EE travel agency application builds flight itineraries and needs to provide runtime
monitoring to external clients. Agency managers need to find out at any given time how many itineraries
have been started but not completed. This information should be made available to managers at runtime
using open-source or commercially available management tools. The instrumentation should be done
with a standard Java EE API. How should you instrument the application?
A. JPA
B. JMX
C. JMS
D. SNMP
Answer: B
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NO.8 You are asked to architect an SOA solution that leverages Java web services. The architecture needs to
be flexible and allow for the SOAP 1.1, SOAP 1.2, and REST implementations. Which Java EE
technology should you use?
A. JAXP
B. JAXB
C. JAX-WS
D. JAX-RPC
Answer: C
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