SCEA for J2EE Technology

Step1 - Knowledge-based Multiple Choice Exam (CX-310-051): 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. Please find the sample questions for this 310-051 from our question bank and also download the study notes below.

Topics Covered: Section 1: Concepts

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

Section 2: Common Architectures

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.

Section 3: Legacy Connectivity

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

Section 4: Enterprise JavaBeans Technology

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.

Section 5: Enterprise JavaBeans Container Model

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.

Section 6: Protocols

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.

Section 7: Applicability of J2EE Technology

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.

Section 8: Design Patterns

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

Section 9: Messaging

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.

Section 10: Internationalization

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.

Section 11: Security

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.

Step2 - Assignment (CX-310-300A) : 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.

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.

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:

Categories	Maximum points
Class Diagram(s)	44
Component Diagram(s)	44
Sequence/Collaboration Diagrams	12

Prerequisites	Successfull completion of the exam in Step 1 (CX-310-051)
Other exams/assignments required	Step 1 (CX-310-051), Step 3 (CX-310-061)
Exam type	Assignment
Number of questions	N/A
Pass score	70%, subject to the evaluation of the Step 3 essay exam and validation of the authenticity of the assignment
Time limit	None

Step3 - Essay Exam (CX-310-061) : 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.

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	Step 1 (CX-310-051) and Step 2 (CX-310-300A).
Exam type	Essay
Number of questions	4

The purpose of this document is to provide a basis for revising for the Sun Certified Programmer examinations, not to teach the Java language or the topics required for the exam. It is designed to collect all the essential information you need to retain, in one place, and is designed for someone who has already finished their own study and is about to take the exam.

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