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4. JEE uses the core patterns to enable flexible association of EJB classes with other components. Which of the following is not used by JEE A. Proxy B. Decorator C. Designer D. Factory
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5. Which statement is not true when discussing best practices A. Data access objects are a useful best practice, as they encapsulate access to data and maintain a clean separation of bean and database access code. B. A session bean facade provides a simple, single point of entry to shared entity beans. C. A session bean facade does not shield the client from complex entity bean relationships and manages workflow on a client s behalf. D. A session bean facade avoids the problems associated with access to entity beans from the client layer namely overabundance of network traffic and latency and awkward security management.
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6. In which of the following cases would an application not necessarily benefit from the use of Enterprise JavaBeans A. Small-scale deployment B. Large-scale deployment C. Requirements transactional in nature D. No transactional requirements 7. The JEE platform uses a multi-tiered distributed application model; which of the following is not considered a tier in this architecture A. Client tier B. Web tier C. Enterprise information system (EIS) tier D. Security tier
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4: Applicability of JEE Technology
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8. Which of the following are best practices for large distributed systems A. Avoid business logic implementation in the display code; display inconsistencies can result because the logic can be copied and modified in one object and not another. B. Coding data manipulation logic, format and display code, and user event handling together can make application maintenance simple. C. Facilitate reuse of user interfaces by segregating application logic from the code for an existing interface. D. Utilizing the MVC design pattern results in a separation of the application data from the ways that the data can be accessed or viewed as well as from the mapping between system events (such as user interface events) and application behaviors. 9. Which of the following are not benefits of using the MVC best practice A. Clarifies application design through separation of data modeling issues from data display and user interaction B. Enhances reusability by separating application functionality from presentation C. Facilitates maintenance by encapsulating application functions behind trusted APIs D. Simplifies database design because only the View components access the database 10. Which of the following is not true of using the MVC best practice A. The Model in an MVC-based application can be divided into two parts: the internal state of the system and the actions that can be taken to alter that state. B. The Controller portion of the application focuses on receiving requests from the client (most often a user running a web browser), deciding what business logic function is to be performed, and delegating responsibility for producing the next phase of the user interface to an appropriate View component. C. The Model determines how the results should be displayed. D. The View transfers user input to the Controller.
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11. Which of the following are not components of the MVC A. Model B. Calculator C. View D. Controller 12. Which of the following is not true of the MVC A. The View extrapolates data presentation and responds to users with data. B. The Controller extrapolates the user interaction/application semantic map and transforms user actions into application actions.
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C. The Model manages persistence. D. The Controller maintains the application state.
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13. Which of the following is not typically considered a threat to enterprise-critical assets A. The disclosure of confidential information B. The modification or destruction of information C. The misappropriation of protected resources D. A misappropriation that does not compromise availability
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14. Which of the following are not true about screen scrapers A. Screen scrapers function as terminal emulators on one end and as object interfaces on the other. B. Screen scraping may be a useful tool when used in conjunction with the off-board servers. C. Changes to legacy UI have little or no impact on the new GUI. D. Screen scraping is best used when the legacy clients have loose coupling with other tiers. 15. If the telephone company were to rewrite its existing legacy code using newer JEE technology, what technology would you choose to accommodate both the block purchase and the individual query A. Java Applet technology for the CORBA call and custom socket programming for vanity number requests B. Java Servlet API for the CORBA call and JSP for the custom socket programming C. Entity EJBs for both D. Session EJBs for both E. JNDI for both F. MQ Series with a JMS-based solution for both 16. Your company s web site offers the customers price comparisons on a variety of different products. You are in charge of converting the web-based solution over to the appropriate JEE technology. Which of the following should you use A. JSP, servlets B. JSP, servlets, EJBs C. Applets, EJBs D. No need to change it E. Perl/CGI scripts is the best solution
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