Thursday, 23 February 2012

Oracle SOA Certification IZO-451

Oracle SOA Certification IZO-451 

The demand for professionals in information technology (IT) is high, and the competition for jobs is intense. Individuals, experienced or new to the profession, need to know what skills make them attractive to employers. Employers look for ways to distinguish employees and prospective employees who have the solid foundation of skills needed for effective performance. The Oracle Certification Program helps the IT industry make these distinctions by establishing a standard of competence in specific job roles.

The Oracle SOA Certification symbolizes the latest and up-to-date knowledge of the industry which is in itself an essential in the IT field. Oracle SOA certification lets you improve your job prospects and helps expanding your professional horizons. It gives you instant recognition from prospective employers and clients, improving your chances of promotion and success. Oracle SOA certification validates your IT knowledge and skill sets according to industry needs so that you feel more empowered regarding the professional choices you want to make in your life.
Like all other Oracle certifications, Oracle SOA certification would prove to be a stepping stone towards your professional enrichment and increased self-esteem. To help you achieve this goal, CertsKing offers you the ultimate preparation resource with a complete range of relevant exams.

Benefits to the IT Employer
The Oracle Certification Program is valuable to hiring managers who want to distinguish among candidates for critical IT positions.
For companies that send employees through annual IT training, certification ensures a return on the training investment by validating the knowledge and understanding gained in training sessions. Companies can also combine certification with an employee development program to enhance employee loyalty and performance on the job.
Hiring certified professionals has a direct impact on a company's bottom line, as these conclusions from a research study by International Data Corporation** suggest:
  • Certified professionals handled 40% more support calls per person, per day, than uncertified staff.
  • Companies that advocated certification reported 49% less downtime than those that did not.
  • For the majority of companies surveyed, the savings from increased effectiveness paid the costs of certification in fewer than nine months.
 http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_451 for more  Info about IZO-451


Preparing for the Exam

1. Read the study material and know it by heart.
 
2. You should understand and know how to explain each of the following:

  • BPEL, service composition, orchestration, composite applications, service reuse.
  • ESB, VETO, transformation, routing.
  • Fine-grained vs. coarse-grained services.
  • XA protocol, compensating transactions, idempotent operations.
  • Calling/exchange paradigms: asynchronous, synchronous, callback, polling, fan-out, callout, uni-directional, bi-directional, fork/join.
  • Terminology: Web services, portlets, WSDL, XML, UDDI, WSRP, JSR, AJAX, HTTP, SSL, SOAP, EDA, JMS, SAML, SLA, canonicals, adapters.
  • WS-* specifications: WS-ReliableMessaging, WS-Policy, WS-Coordination, WS-Security, WS-Trust, WS-Addressing.
  • Products: Service Registry, Service Bus, Policy Directory, BAM, Web Services Manager. 
3. Go through the BEA SOA Adoption & Implementation Mock Exam and Oracle SOA Foundations, Adoption and Implementation Sample Questions.

4. Leverage your SOA architecture and implementation experience. 

Oracle Links 
For more information about the certification and the exam, check out:
    http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=284
    http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_451

Sample Questions
Oracle SOA Foundations, Adoption and Implementation Sample Questions 

My Opinions

The exam assumes architecture level experience within the SOA space.

For example, what role does BAM (Business Activity Monitoring) play in your enterprise? What is the best way to push data to BAM? How does this, if at all, impact your main operational process? Unless you have architected the usage of and/or implemented BAM, you may not know. If you can answer these questions, then you should be able to answer one of the BAM related questions in the exam.

Being a perfectionist, I noticed a few grammatical errors in the exam, missing periods, double quotes not closed, etc., but nothing that would impact your understanding of the question.

Final thoughts:

  • Follow what I mentioned in "Preparing for the Exam". This will give you what you need to cover 75% of the exam.
  • Questions are not technical in nature. For example, you will not find questions that ask "What is the request security token structure in WS-Trust?" You will most likely encounter questions such as "Company X currently has services on a legacy system and want to migrate them off. What should they do?"
  • Go through the mock exams.
  • Know the BEA White Paper Domain Model For SOA by heart. If you would like the summary and study notes I made from this white paper, then contact me and I'll be happy to share it.
  • The ORACLE mock exams I listed above have a few questions that are similar to those that appear in the exam, so going through them will probably firm up your concepts.

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