SCJA – An entry level Java certification
Sun certification exams are valued and trusted by employers worldwide due to its high quality, credibility, and skill-focused assessments.
Prior to the launch of the new Sun Certified Java Associate (SCJA) exam in September 2005, all the Java Certification examinations were intended for experienced Java professionals only.
The Sun Certified Associate for the Java Platform, Standard Edition, Exam Version 1.0 certification exam provides an ideal entry into an application development or a software project management career using Java technologies. This worldwide credential validates basic knowledge of Object-Oriented Concepts, UML representation of Object-Oriented concepts, Java programming language, and general knowledge of Java Platforms and Technologies. According to Sun Microsystems, candidates for this exam include entry level Java programmers, students studying to become Java programmers, and project or program managers working with Java technology in the software development industry.
Delivered at : Authorized Prometric Testing Centers
Prerequisites : None
Other exams/assignments required for this certification : None
Exam type : Multiple choice and Drag and Drop
Number of questions : 51
Pass score : 68% (35 of 51 questions)
Time limit : 115 minutes
Looking at the exam objectives
The main objectives for the SCJA exam are as follows:
Section 1: Fundamental Object-Oriented Concepts
Section 2: UML Representation of Object-Oriented Concepts
Section 3: Java Implementation of Object-Oriented Concepts
Section 4: Algorithm Design and Implementation
Section 5: Java Development Fundamentals
Section 6: Java Platforms and Integration Technologies
Section 7: Client Technologies
Section 8: Server Technologies
For the first objective, Fundamental Object-Oriented Concepts, you must know the details of the basic OO (Object Oriented) programming concepts like abstraction, encapsulation, polymorphism, and inheritance. You must also be able to identify association/composition, relationships between classes including the significance of association navigation and multiplicities. Conceptual knowledge of concrete/abstract classes and interfaces is also required here. You can expect questions like the benefits of encapsulation and differences between abstract classes and interfaces.
The second objective, UML Representation of Object-Oriented Concepts, does not require you to be a UML guru. It simply tests your knowledge in understanding UML basics like object and class diagrams, symbolic representations of abstract classes and interfaces, associations, compositions and inheritance. In a given UML diagram, you might be asked to identify if it denotes an inheritance relationship or a composition. You can expect very straightforward and simple questions from this objective. So make sure you do not lose marks here in this objective.
The third objective, Java Implementation of Object-Oriented Concepts, is about implementing all the OO programming concepts using Java code. You must be well versed in Java Language fundamentals to perform satisfactorily in this objective.
You can expect questions on the new Java 5.0 features such as enumerated data types in this objective. So make sure you try it out if you have worked only with the previous versions of Java. You must be able to pick out syntax and semantic errors in Java code like concrete classes containing abstract methods or interfaces defining private methods.
For the fourth objective, Algorithm Design and Implementation, you must have expertise in developing Java code, given the algorithm description. For this, you must be familiar with conditional and iteration statements using the new enhanced for loop introduced in Java 5.0. Also don’t forget to check out the usage of important API methods from the String class listed in the objective.
The fifth objective, Java Development Fundamentals, is relatively easy, if you are familiar with defining packages and using them by specifying import statements. Make sure that you know the effects of the command line options when using the java and javac tools. Even though you have not used classes from all the system packages mentioned in the objective, you should have a basic idea of the nature of classes within each of them. For example, you must know that date and collection classes are in java.util, while networking classes are in the java.net package.
To do well in the sixth objective, Java Platforms and Integration Technologies, you need an overall idea of the features and advantages of technologies like RMI, JNDI, JMS, JDBC and the like. For J2ME, go through the basic architecture, the types and capabilities of the different configurations, and profiles.
The seventh objective, Client Technologies, requires you to know the comparative benefits and possibilities of using various clients like HTML, applets, MIDlets and Swing components. For example, you might be asked how Swing differs from AWT in terms of implementation and/or performance. So it is important to know the high level characteristics of different client types, and in what kind of situations one is preferred over another.
In the eighth objective, Server Technologies, you can give a good shot if you possess a good knowledge of various server-side technologies. You do not require a detailed knowledge of Web Services. A generalized study of the concepts of SOAP, UDDI, WSDL, and JAX-RPC would suffice. You should also know components of each tier in a J2EE application. For example, given a list of components like entity beans, servlets, applets and so on, you might be asked to identify the ones which belong to the business tier.
As the exam is intended for Java beginners, the toughness level of questions is quite low, as compared to other Java certification exams. Freshers to Java can score well, if they can extensively read about the various Java-based technologies and also get hands-on practice on Java fundamentals for a couple of months.
No certification study guides are available yet for this exam; however, I am listing a few books in the resources section below. I feel it would be quite useful for the preparation. Any good book which covers Java Language basics like Head First Java is sufficient for handling code-based questions. Take code examples from the books, go through them and experiment with various possibilities.
As of now, there are not many known resources on the net, which are especially meant for SCJA. Some of the Java basics which are covered by SCJA are also included in SCJP. So any resources and mock exams available on the web for SCJP can be referred to learn the common topics. For other topics, I have included some useful references in the resources section.
Most of the questions are of multiple choice type with one or more correct answers.
Only one or two of the questions are of Drag and Drop type, where you need to fill in the missing code to make the whole program work correctly by dragging and dropping the code fragments into their appropriate places.
The new SCJA 1.0 exam simulator from Whizlabs contains questions of varying difficulty levels matching the content and style of the SCJA exam. It provides five mock exams to practice on, an interactive quiz, and quick revision notes for last minute review. For those of you who have limited time for self-study or who would benefit from training and guidance from a certification mentor, Whizlabs also plans to offer an Instructor-led online training for the SCJA Exam.
The SCJA exam provides an excellent opportunity for budding Java programmers and students to validate their skills and demonstrate their overall knowledge in Java technologies.
Whizlabs (www.whizlabs.com), an ISO Certified company, is a leading provider of IT skill assessment and certification exam preparation tools. Whizlabs\ suite of offerings include “IT Certification Exam simulators and Instructor-led, Online Trainings” for various exams by Sun, IBM, Oracle, Microsoft, BEA, Cisco, and other leading IT vendors and “IT skill Assessment Management Solution” for Corporations, Training Institutes, and Universities.