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NO.1 A company has a legacy system that it is going to use Java EE technology to re-engineer. The legacy
solution consists of active server pages and a relational database. The company is interested in changing
DB vendors in the future and this requirement is key to moving forward.
This is a web-based transactional sales system. The company will keep the relational database schema
because it still meets business requirements and will not require re-engineering. What is
the best solution?
A. JSP, JDBC only
B. JSP, servlets, JDBC only
C. JSF, servlets, JPA, EJB3
D. JSF, servlets, DAO, JDBC
Answer: C
Oracle試験 1Z0-868 1Z0-868過去問 1Z0-868学校
NO.2 What describes the design relationship between session beans and entity beans?
A. aggregation
B. separation of concerns
C. common reuse principle
D. Liskov substitution principle
E. interface segregation principle
Answer: B
Oracle学習 1Z0-868問題集 1Z0-868 1Z0-868 1Z0-868 1Z0-868講座
NO.3 Which two characteristics are NOT important factors in the selection of a web application framework
for a large project? (Choose two.)
A. complexity of the framework
B. degree of usage in the industry
C. availability of a unit test framework
D. reusability of model and view components
E. separation of concerns afforded by the framework
F. level of integration with common logging frameworks
Answer: C,F
Oracle講座 1Z0-868資格 1Z0-868費用 1Z0-868関節
NO.4 You are architecting a complex multi-tiered web application. Within each tier you have designed layers,
the lowest being the hardware layer and the highest being the application layer. Which statement is true?
A. Generally, a given layer in one tier of this application should be concerned with the technology used in
the same layer of adjacent tiers.
B. To maximize separation of concerns, a given layer in a tier of this application should only have
knowledge of the adjacent layer in that tier.
C. For any given tier, separation of concerns is fulfilled when a given layer in that tier knows or needs to
know little or nothing of the layers below it.
D. If the layers in one tier of the application have been designed to achieve separation of
concerns, then the remaining tiers also achieve separation of concerns by default.
Answer: B
Oracle取得 1Z0-868認証試験 1Z0-868 1Z0-868割引
NO.5 DRAG DROP
Answer:
NO.6 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
Oracleフリーク 1Z0-868教本 1Z0-868問題集
NO.7 A company is in the business of distributing hard candies. The distribution of these candies is
automated and the system that helps track information about candy distribution is written in Java
technology. The business unit for the company has been asking the IT group to provide a flexible
reporting system to track detailed information. A large amount of data about candy is stored using a DAO
layer, but little is used. What is the best solution for the IT group to implement to provide the most flexibility
for the business unit?
A. refactor the DAOs to include additional static queries to pull information and export a
spreadsheet for the business unit to review
B. implement an ad-hoc query tool exposed using JSF that allows business units to create queries and
produce results in a given format
C. provide a JSP page, which has scriptlets that expose pre-defined queries for the business unit to
execute and display in HTML
D. create a web service that exposes fixed queries invoked by a JSP client that can pull data from the
database and export in a given format
Answer: B
Oracle認定証 1Z0-868 PDF 1Z0-868教本 1Z0-868番号
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
Oracle 1Z0-868一発合格 1Z0-868学習 1Z0-868認定試験 1Z0-868会場
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