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Code d'Examen: 1Z0-878
Nom d'Examen: Oracle (Oracle Solaris 10 System Administrator Certified Professional Exam, Part II)
Questions et réponses: 356 Q&As
Code d'Examen: 1Z0-864
Nom d'Examen: Oracle (Java Enterprise Edition 5 Enterprise Architect Certified Master Exam (Step 1 of 3))
Questions et réponses: 238 Q&As
Code d'Examen: 1Z0-803
Nom d'Examen: Oracle (Java SE 7 Programmer I )
Questions et réponses: 97 Q&As
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NO.1 A company has a web service that provides the most recent price for stocks, mutual funds, and
commodities. The company has the only web service that allows a person to check prices on all three
financial assets with one call. Its system does not store this information but sends individual calls to each
of the primary vendors for an asset and then aggregates the response to the requester. The company has
committed to support a non-functional requirement (NFR) for performance that states it must process all
requests within three seconds and each of the three vendors is obligated to support the NFR as dictated
by the company. Where, in the message flow, is it appropriate to measure whether all the NFRs are met?
A. when a request is received and a response is sent to the requester
B. when a request is received, first call to vendor, last response from vendors, response is sent to a
requester
C. when a requester sends a request, the request is received, each call to vendor, each
response from vendor, requester receives response
D. when a request is received, each call to vendor, each response from a vendor, a response is sent to a
requester
Answer: D
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NO.2 An application needs to invoke a service on a remote system over a low latency connection, and then
wait for a response. Which two are best for this type of invocation? (Choose two.)
A. JMS topic
B. JMS queue
C. RMI over IIOP
D. synchronous web service
E. asynchronous web service
Answer: C,D
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NO.3 A stock trading company is writing a new application for stock market forecasting. A significant portion of
the work required by the business logic involves navigating through the persistent object model. As lead
architect on this project, you have chosen JPA over EJB2 entity beans to implement these persistent
objects. You have done this to maximize performance when navigating through the model. Why does JPA
offer better performance for this task.?
A. JPA guarantees referential integrity at the object level.
B. JPA allows the application to specify lazy or eager retrievals.
C. JPA simplifies the source code that implements the object model.
D. The guaranteed referential integrity in EJB2 entity beans is expensive.
Answer: B
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NO.4 An online sporting goods store's web application uses HTTPSession to store shopping carts.
When the application is initially deployed, the business plan predicts only a few customers will access the
site. Over time, the store projects a steady increase in volume. The deployment plan calls for a single web
container in the initial deployment. As demand increases, the plan calls for multiple web containers on
separate hardware with clustered HTTPSession objects. Which two principles will help the application
meet the requirements and optimize performance? (Choose two.)
A. The application should store as much as possible in HTTPSession objects.
B. The application should NOT make frequent updates to HTTPSession objects.
C. The application should make coarse-grained updates to HTTPSession objects.
D. The application should create new HTTPSession objects instead of updating existing objects.
Answer: B,C
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NO.5 You are architecting an online ordering application with these requirements: Users access the system
over the Internet using HTML.
An email message is sent to the user confirming the order. Users must log in and are validated using
LDAP.
The product catalog is stored in a relational database.
All orders are logged to the internal fulfillment system.
Orders must not be lost.
Which Java EE technology should be used to send orders to the fulfillment system?
A. JNDI
B. JMS
C. JAX-WS
D. RMI-IIOP
Answer: B
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NO.6 You are integrating with a single legacy Enterprise Information System. You are interested in the
transaction management capabilities of the Java Connector Architecture. This new system needs the
capability to invoke multiple operations against this single legacy system. These operations succeed
together or fail together as a group. To which minimum level of transaction management are you going to
set your resource adapter?
A. No transaction
B. Local transaction
C. Distributed transaction
D. Container Managed transaction
Answer: B
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NO.7 A Java web component, EJB component, or another web service can be a client to a web service.
Which Java API can the client use to access the web service through a Service Endpoint Interface?
A. JAXB
B. JAXR
C. JDBC
D. JAX-WS
Answer: D
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NO.8 What are the three primary roles in a web service interaction? (Choose three.)
A. Broker
B. Facade
C. Provider
D. Decorator
E. Requestor
F. Interceptor
Answer: A,C,E
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