What does the scea test (Sun Certified architect) take? (including real questions and test sites)
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Scea certificate is a software system. Developers with this certificate can design the structure of the J2EE program and skillfully use the characteristics of J2EE to build a flexible and scalable system, secure Architecture. To pass the scea exam, developers must be able to understand and communicate high-level design concepts. Therefore, the scea certificate emphasizes the design concept, rather than the traditional specific APIs.
Scea has two major design concepts: Unified Model Language (UML) and design pattern, both of which have received special attention. UML is used to draw an object-oriented design chart, document it, and then use the chart during the design process to form a system. UML evolved and integrated from many design methods, and then changed to an Object Management Group (OMG ). In addition to design, scea certification also comprehensively assesses Sun's core J2EE technologies. Therefore, to pass the scea examination, you must be proficient in the core J2EE technology and have good design experience and philosophy.
It takes three steps to obtain the scea certificate, that is, three exams. They are:
1,Computer Theory Test
This part of the examination is a computer examination, the question type is to select a question, a total of 64 questions, answer more than 57% to pass. The test time is 120 minutes.
2,Complete a design project task
After passing the first test, download a design task exercise from the test website. This is a design training, not a program training, so you do not need to establish a complete program, and there is no time limit, the final submission of the UML design diagram.
3, Submit comments to test
After submitting the design training, you can add the final step. This part includes four comments. The answers to these comments depend on the design content of the second part.
The first part of the test is the most difficult. Because there are too many research sites and computer exams, they are objective questions. The second part of the examination is an offline design question. It is easier to pass the examination by referring to many books and materials. As long as the second part is done by yourself and earnestly, the third part is basically okay. Next, analyze the objective question test points in the first part. The main test points are as follows:
1. application design concepts and principles
Application Design concepts and principles.
For example:
The answer to this question is D. The disadvantage of a two-tier architecture is poor manageability.
2. Common ubuntures
General architecture.
For example:
The answer to this question is A, B, and C. The three-tier architecture mainly separates data, views, and logic.
3. Integration and Messaging
Integration and message. It mainly includes JCA, JMS and other related technologies.
For example:
The answer to this question is B.
4. Business Tier Technologies
Business Layer technology. It mainly includes EJB3 and other related technologies.
For example:
The answer to this question is B. The difference between Session Bean and Entity Bean lies in separation of focus.
5. Web Tier Technologies
Web layer technology. It mainly includes JSP, JSF and other related technologies.
For example:
The answer to this question is B.
6. Applicability of Java EE Technologies
Applicability of JavaEE technology.
For example:
The answer to this question is C. Mainly compare the differences between JSP and JSF.
7. Patterns
Design mode. It mainly includes common J2EE modes.
For example:
The answer to this question is a and c.
8. Security
Security.
For example:
The answer to this question is.