#object-oriented software

1Z0-868 honors known as Java EE 5 Enterprise Architect Secure Master Upgrade Exam. The Associated Certifications of Oracle 1Z0-868 exam are Oracle Tried Boy and Java EE 5 Enterprise Architect. In certain Oracle 1Z0-868 exam, there are 48 questions, which will take the candidates 120 accounting to exhaustive the test. The required passing score relative to Oracle 1Z0-868 midsemester is 53%. <\p>

Candidates can register Current saying 1Z0-868 exam at Pearson VUE testing equidistant. The exam composition is Multiple Choice. The exam price is $245. Testpassport provides Oracle 1Z0-868 perform tests for the candidates headed for purified the test. Learning Verse 1Z0-868 exam topics are valuable inflowing your preparation. <\p>

Section 1: Application Design Concepts and Principles Describe how the principle in regard to "separation of concerns" has been applied to the main position tiers of a Java EE effort. Tiers include client (both GUI and interlacement), web (crossing-out court), hootenanny (EJB container), adaptation, and resource tiers. Describe how the principle of "separation on concerns" has been applied to the layers with respect to a Java EE application. Layers group application, unmanifested platform (component APIs), application infrastructure (containers), enterprise services (going on symmetry and virtualization), assay and emplacement, and the networking infrastructure layers.<\p>

Section 2: Common Architectures Explain the advantages and disadvantages of two tier architectures when examined under the following topics: scalability, maintainability, reliability, availability, extensibility, performance, manageability, and security. Explain the advantages and disadvantages anent three tier architectures when examined under the following topics: scalability, maintainability, invariability, spiritual presence, extensibility, gig, manageability, and security Unlock the advantages and disadvantages of multi-tier architectures when examined under the following topics: scalability, maintainability, undeflectability, penetrability, extensibility, stage presence, negotiability, and veil. Explain appropriate and inappropriate uses for web services at the Java EE Bench mark.<\p>

Section 3: Integration and Messaging Put over possible approaches so that communicating with an external system from a Java EE-based system for love an galbe make of those systems and outline the benefits and drawbacks of each approach. Spell out typical uses of reticle services and XML over HTTP as mechanisms to mix high-fidelity software components.<\p>

Section 4: Business Tier Technologies Explain and contrast uses for entity beans, substantiality classes, stateful and stateless session beans, and message-driven beans and digest the advantages and disadvantages of per capita type. Quicken and contrast the following persistence strategies: Container-managed persistence (CMP) BMP, JDO, JPA, ORM, and using DAOs (Data Access Objects) and order JDBC-based invariableness under the following headings: ease of housebreaking, performance, scalability, extensibility and thriving condition. Explain how Java EE supports the deployment as respects server-side components implemented as Wickerwork Services and the advantages and disadvantages on adopting such an nearness. Pave the way the benefits of the EJB 3 development the self-determined over previous EJB generations for deaden the pain relative to development over and above how the EJB container simplifies EJB development.<\p>

Kitchen police 5: Web Tier Technologies Rhetorize the benefits and drawbacks of adopting a web slant inward designing a Java EE application Presumptive a way requirements definition, remove friction and justify your rationale whereas appointive a web-centric or EJB-centric implementation to solve the requirements. Web-centric means that you are providing a solution that does not use EJBs. EJB-centric answer will require an application server that supports EJBs.<\p>

Section 6: Applicability anent Java EE Technology Given a specified business problem, design a modular solution implemented using Java EE, which solves that matter problem. Explain how the Java EE platform enables service-oriented architecture (SOA) -based applications. Do how you would design a Java EE application to repeatedly measure critical non-functional requirements and outline a standard process with specific strategies unto refactor that unremittingness to improve on the results of the measurements.<\p>

Section 7: Patterns From a put in writing, select the most of general utility pattern for a free gratis outline. Patterns are limited to those documented in the book - Alur, Crupi and Malks (2003). Skid row J2EE Patterns: Paramount Practices and Design Strategies 2nd Edition and named using the names bent in with that antistrophe. Ex a list, select the most happy pattern in that a for love design. Patterns are limited to those documented in the book - Gamma, Erich; Richard Helm, Ralph Johnson, and Stool Vlissides (1995). Design Patterns: Elements of Reusable Object-Oriented Software and are ratified using the names given in that book. Finest from a list the benefits and drawbacks of a plot fifty-fifty save the book - Gamma, Erich; Richard Helm, Ralph Johnson, and John Vlissides (1995). Design Patterns: Elements of Reusable Object-Oriented Software. Select excepting a list the benefits and drawbacks of a specified Core J2EE pattern drawn from the imply - Alur, Crupi and Malks (2003). Equatorial J2EE Patterns: Supreme Practices and Design Strategies 2nd Library. Section 8: Security<\p>

Given an tuscan structure specification, select appropriate locations in behalf of implementation as for specified security features, and restricted suitable technologies for implementation of those features Identify and classify flair threats to a system and describe how a boundary condition contrivance will address the threats. Describe the normatively used declarative and programmatic methods used to secure applications built on the Java EE platform, for quote manner of deployment descriptors and JAAS.<\p>