Java (EE) Enterprise Architect Certified Master Assignment (Schritt 2 von 3)

Java (EE) Enterprise Architect Certified Master Assignment (Schritt 2 von 3)

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• BOTH assignment and essay must be submitted within 6 months of assignment purchase date. No exceptions. If you do not submit assignment and essay before the deadline, you will be required to purchase a new assignment.
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Prüfungsthemen

• Document a given system architecture by creating UML diagrams for it
• Explain the main advantages of an object-oriented approach to system design. including the effect of encapsulation, inheritance, and use of interfaces on architectural characteristics.
• Describe how the principle of "separation of concerns" has been applied to the main system tiers of a Java Platform, Enterprise Edition (Java EE) application. Tiers include client (both GUI and web), web (web container), business (EJB container), integration, and resource tiers.
• Describe how the principle of "separation of concerns" has been applied to the layers of a Java EE application. Layers include application, virtual platform (component APIs), application infrastructure (containers), enterprise services (operating system and virtualization), compute and storage, and the networking infrastructure layers.

• 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 of three-tier architectures when examined under the following topics: scalability, maintainability, reliability, availability, extensibility, performance, manageability, and security
• Explain the advantages and disadvantages of multi-tier architectures when examined under the following topics: scalability, maintainability, reliability, availability, extensibility, performance, manageability, and security.
• Explain the benefits and drawbacks of rich clients and browser-based clients as deployed in a typical Java EE application.
• Create a logical and physical model of a system infrastructure architecture.

• Explain possible approaches for communicating with an external system from a Java EE technology-based system given an outline description of those systems and describe the benefits and drawbacks of each approach.
• Explain typical uses of web services and XML over HTTP as mechanisms to integrate distinct software components.
• Explain how JCA and JMS are used to integrate distinct software components as part of an overall Java EE application.
• Given a scenario, explain the appropriate messaging strategy to satisfy the requirements

• Explain and contrast uses for entity beans, entity classes, stateful and stateless session beans, and message-driven beans and understand the advantages and disadvantages of each type.
• Explain and contrast the following persistence strategies: container-managed persistence (CMP), BMP, JDO, JPA, and ORM, and using DAOs (Data Access Objects) and direct JDBC technology-based persistence under the following headings: ease of development, performance, scalability, extensibility and security.

• Given a system requirements definition, explain and justify your rationale for choosing 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. An EJB component-centric solution will require an application server that supports EJB components.

• Given a specified business problem, design a modular solution that solves the business problem using Java EE technology.