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Preparing for the Sun Certified Web Component Developer SCDJWS Certification Exam

Web Services enable disparate systems to communicate with each other in a platform-independent way. Today, Information Technology increasingly needs to integrate various heterogeneous application systems, and one of the best ways to integrate them is by using Web Services.

To perform well in the exam, you must have at least a thorough understanding of Web Service technologies like XML, SOAP, WSDL, and UDDI. If you are a beginner, you can start by learning the basic concepts from books covering Web Services.

You can prepare for the exam in the following four phases. Each phase is equally important and the content of each phase has to be mastered to pass the exam with ease. You may want to prepare one phase after another because each phase consists of related technologies. All the phases together cover the entire exam objectives.

Phase 1: Core Web Service technologies and WS-I Basic Profile 1.0a
XML, XML-Schema, SOAP, WSDL, and UDDI, and consider the requirements imposed on these technologies by WS-I Basic Profile.

Phase 2: Java APIs dealing with the core Web Service technologies like JAX-RPC, JAXP, JAXB, SAAJ, and JAXR.

Phase 3: Security: Various technologies related to securing Web Services An understanding of the various security mechanisms and security standards is required to answer the security related questions in the exam.

Security Mechanisms : Basic and mutual authentication, SSL, message level security, XML encryption, XML Digital Signature, federated identity, and trust.

Standards/Initiatives : Username Token Profile, SAML, XACML, XKMS, WS-Security, and the Liberty Project.

Phase 4: J2EE and Web Services
You need to understand how web services fit into the J2EE platform and how they can be used together with related J2EE technologies like Servlets and EJBs. In addition to this, you also need to understand how web services are designed and architected.

Preparation Time

The time it takes to prepare for the exam varies from person to person, based on their familiarity with Web Services. For a Web Services novice, it could take about 40 days, spending 6 - 8 hours a day preparing for the certification exam.For those who are familiar with Web Services basics, it could take about 20 days, spending 5 - 7 hours a day preparing for the certification exam. For advanced users of Web Services, it could take about 10 days, spending around 4 hours a day preparing for the certification exam.

Tips and Tricks

Most of the Java/J2EE programmers are not very familiar with all the concepts of Web Services. This exam for Sun Certified Developer for JavaWweb Services would require a concrete preparation for performing well. This exam is not meant to be attempted half-heartedly. You need to be fairly confident and thorough with all the objectives before taking the exam.

• The time available for the exam is generally sufficient. Try not to rush and take sufficient time to answer each question.
• Be sure that you'v memorized/are aware of all the restrictions imposed by WS-I Basic Profile 1.0a.
• The exam has quite a few number of multiple choice - multiple response type of questions. Use the process of elimination in case you are not sure about the correct answer.
• Remember to go through the 'Security' objective thoroughly as these concepts are relatively new to many people.
• Practice correct code snippets for using APIs like JAX-RPC, JAXP, JAXR, JAXB, and especially SAAJ.
• In JAXP, don't forget to read about XSLT, as there could be The SCJ a couple of questions based on it, too.

A exam provides an excellent opportunity for budding Java programmers and students to validate their skills and demonstrate their overall knowledge in Java technologies.

The time and effort required for preparation depends on your experience (or rather lack of it!!) in programming, especially in Java Technology. If passing the SCDJWS exam is on your list of priorities for the year start with our diagnostic exam right away it is free for a week. This has been successful 99.7% of times with over 50,000 people since October 2000. God forbid! In case you do not pass the Certification Exam, you have nothing to lose with us we will refund back the entire amount you have spent with us without asking any questions. Period!

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