Sun J2EE技术认证企业架构师(转载)

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今天找了一下sun的企业架构师认证,从一个blog找的 

Sun J2EE技术认证企业架构师(第一阶段,共三阶段) (CX-310-051)


概要
The Sun Certified Enterprise Architect for J2EE Technology (Step 1 of 3) certification exam is for enterprise architects responsible for architecting and designing Java 2 Platform, Enterprise Edition (J2EE) compliant applications, which are scalable, flexible and highly secure.
 

 
Details

  • Delivered at: Authorized Prometric testing centers
  • Prerequisites: None
  • Other exams/assignments required for this certification: Step 2 (CX-310-300A), Step 3 (CX-310-061)
  • Exam type: Multiple choice, short answer, and drag and drop
  • Number of questions: 48
  • Pass score: 68%
  • Time limit: 75 minutes
 

 
语言

  • English
预备知识
None
 

概要
The Sun Certified Enterprise Architect for J2EE Technology (Step 3 of 3) certification exam is for enterprise architects responsible for architecting and designing Java 2 Platform, Enterprise Edition (J2EE) compliant applications, which are scalable, flexible and highly secure.

 

 
Details

  • Delivered at: Authorized Prometric testing centers
  • Prerequisites: Successful completion of the exam in Step 1 (CX-310-051), and submission of the architecture and design project in Step 2 (CX-310-300A).
  • Other exams/assignments required for this certification: Step 1 (CX-310-051) and Step 2 (CX-310-300A).
  • Exam type: Essay
  • Number of questions: 4
  • Pass score: N/A (please refer to the pass score in Step 1)
  • Time limit: 90 minutes

 

 
语言

  • English
预备知识
Successful completion of the exam in Step 1 (CX-310-051), and submission of the architecture and design project in Step 2 (CX-310-300A).

第1节:概念

  • Draw UML Diagrams
  • Interpret UML diagrams.
  • State the effect of encapsulation, inheritance, and use of interfaces on architectural characteristics.

第2节:通用架构

  • Recognize the effect on each of the following characteristics of two tier, three tier and multi-tier architectures: scalability maintainability, reliability, availability, extensibility, performance, manageability, and security.
  • Recognize the effect of each of the following characteristics on J2EE technology: scalability maintainability, reliability, availability, extensibility, performance, manageability, and security.
  • Given an architecture described in terms of network layout, list benefits and potential weaknesses associated with it.

第3节:遗留系统的可连接性

  • Distinguish appropriate from inappropriate techniques for providing access to a legacy system from Java code given an outline description of that legacy system

第4节:企业JavaBean技术

  • List the required classes/interfaces that must be provided for an EJB technology.
  • Distinguish stateful and stateless Session beans.
  • Distinguish Session and Entity beans.
  • Recognize appropriate uses for Entity, Stateful Session, and Stateless Session beans.
  • State benefits and costs of Container Managed Persistence.
  • State the transactional behavior in a given scenario for an enterprise bean method with a specified transactional deployment descriptor.
  • Given a requirement specification detailing security and flexibility needs, identify architectures that would fulfill those requirements.
  • Identify costs and benefits of using an intermediate data-access object between an entity bean and the data resource.

第5节:企业JavaBean容器模型

  • State the benefits of bean pooling in an EJB container.
  • State the benefits of Passivation in an EJB container.
  • State the benefit of monitoring of resources in an EJB container.
  • Explain how the EJB container does lifecycle management and has the capability to increase scalability.

第6节:协议

  • Given a scenario description, distinguish appropriate from inappropriate protocols to implement that scenario.
  • Identify a protocol, given a list of some of its features, where the protocol is one of the following: HTTP, HTTPS, IIOP, JRMP.
  • Select from a list, common firewall features that might interfere with the normal operation of a given protocol.

第7节:J2EE技术的可用性

  • Select from a list those application aspects that are suited to implementation using J2EE.
  • Select from a list those application aspects that are suited to implementation using EJB.
  • Identify suitable J2EE technologies for the implementation of specified application aspects.

第8节:设计模式

  • From a list, select the most appropriate design pattern for a given scenario. Patterns will be limited to those documented in Gamma et al. and named using the names given in that book.
  • State the benefits of using design patterns.
  • State the name of a design pattern (for example, Gamma) given the UML diagram and/or a brief description of the pattern’s functionality.
  • Select from a list benefits of a specified design pattern (for example, Gamma).
  • Identify the design pattern associated with a specified J2EE feature

第9节:消息传递

  • Identify scenarios that are appropriate to implementation using messaging, EJB, or both.
  • List benefits of synchronous and asynchronous messaging.
  • Select scenarios from a list that are appropriate to implementation using synchronous and asynchronous messaging.

第10节:国际化

  • State three aspects of any application that might need to be varied or customized in different deployment locales.
  • Match the following features of the Java 2 platform with descriptions of their functionality, purpose or typical uses: Properties, Locale, ResourceBundle, Unicode, java.text package, InputStreamReader and OutputStreamWriter.

第11节:安全性

  • Select from a list security restrictions that Java 2 environments normally impose on applets running in a browser.
  • Given an architectural system specification, identify appropriate locations for implementation of specified security features, and select suitable technologies for implementation of those features.

Sun J2EE技术认证企业架构师(第二阶段,共三阶段) (CX-310-300A)

概要

The Sun Certified Enterprise Architect for J2EE Technology (Step 2 of 3) certification exam is for enterprise architects responsible for architecting and designing Java 2 Platform, Enterprise Edition (J2EE) platform compliant applications, which are scalable, flexible and highly secure.

Description of the Sun Certified Enterprise Architect Assignment Exam

The Sun Certified Enterprise Architect for J2EE (SCEA) is intended for Java technology professionals responsible for architecting systems. It is expected but not mandatory that a person taking the SCEA exam has already passed the Java technology programmer and Java technology developer certifications. The SCEA exam is broken down into three parts. Part 1 is multiple choice and tests your knowledge in the areas of general architecture and J2EE. Part 2 is an assignment that tests your ability to apply the knowledge you were tested on in part 1. Part 3 is an essay that asks questions about your assignment.

Description of the Sun Certified Enterprise Architect Assignment

This is a description of the nature, scale, and scope of the problem you will be required to solve in the SCEA assignment. These notes do not form any part of the actual assignment, and if you find a contradiction between these notes and the actual assignment instructions, you must adhere to the instructions in the assignment documents.

Nature of the Assignment

The assignment requires that you architect a solution for a small but plausible business system. To keep the amount of work involved to a reasonable level, the programs you create will be much more restricted in capability, and much cruder in overall presentation, than anything you would actually create for a paying customer. However, the essence of the problem will be the same. You will be graded on correctly solving the technical and performance requirements, not on the /”polish/” of the finished product.

Scale of the Assignment

Obviously, the amount of time taken by a candidate to create a solution to the assignment varies greatly. A fast candidate might create a solution in about 40 hours, but a more typical time requirement might be about 80 hours. If you spend a lot more than 100 hours on the project, then you might be creating something that is more detailed than the requirement, or you are lacking some of the skills necessary to complete the assignment.

Scoring Criteria

Your project will be evaluated on a large number of objective criteria that fall into three categories:

1) Class Diagram: This category covers how well your class diagram(s) address the object model needed to satisfy the requirements.

2) Component Diagram: This category covers how well your component diagram(s) convey the structure of the architecture in satisfying the requirements.

3) Sequence/Collaboration Diagrams: This category covers how well your sequence or collaboration diagrams satisfy the requirements of the assignment.

Additionally, each category is evaluated on UML compliance.

The maximum number of possible points is 100. The minimum passing grade is 70. The maximum points per category are:

CategoriesMaximum points

Class Diagram(s) – 44

Component Diagram(s) – 44

Sequence/Collaboration Diagrams – 12

APIs relevant to the Assignment

The assignment requires that you have an in-depth understanding of the Java programming language and J2EE APIs. You can choose to use any released version of the J2EE APIs.

Suggested Reading Materials

Mark Cade and Simon Roberts. Sun Certified Enterprise Architect for J2EE Technology Study Guide, Third Edition, Prentice Hall, 2002.

Erich Gamma. Design Patterns, Boston: Addison-Wesley Publishing Co., 1995.

Richard Monson-Haefe. Enterprise JavaBeans, O’Reilly and Associates, 2001.

Martin Fowler. UML Distilled: A Brief Guide to the Standard Object Modeling Language, Third Edition, Boston: Addison-Wesley Publishing Co., 2003.

 

 
Details

  • Delivered at: CertManager database
  • Prerequisites: Successfull completion of the exam in Step 1 (CX-310-051)
  • Other exams/assignments required for this certification: Step 1 (CX-310-051), Step 3 (CX-310-061)
  • Exam type: Assignment
  • Number of questions: N/A
  • Pass score: 70% *
  • Time limit: None

* Pass score is subject to the evaluation of the Step 3 essay exam and validation of the authenticity of the assignment

 

 
语言

  • English
预备知识
Successfull completion of the exam in Step 1 (CX-310-051)

 

 

开发作业目标

Sun J2EE技术认证企业架构师(第三阶段,共三阶段) (CX-310-061)

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