The official SUN Sun Certified Developer for Java Web Services (SCDJWS) blueprint is split into 6 domains, starting with JAX-WS Web Services Development (25%), Web Services Security and Architecture (10%), Java APIs for XML Processing (22%). The percentages tell you where the exam concentrates its questions, so budget your study time accordingly — the complete outline above lists every domain and subtopic.

The SUN Sun Certified Developer for Java Web Services (SCDJWS) is SUN's official exam for the Sun Certified Developer for Java Web Services (SCDJWS) certification, positioned at the Professional / Expert level. It is the credential hiring managers scan for, and passing it proves your skills meet the vendor's own standard. It also links to related certifications like Sun Certified Programmer for Java 2 Platform (SCJP), Oracle Certified Professional, Java EE 5 Web Services Developer, so this exam can serve as a building block in a longer certification plan.

Registration goes through the vendor's official channels:

• Oracle Education (retired exam)

Worth knowing before you book: the 310-230 exam is delivered In-person at authorized testing centers (originally Prometric, later Pearson VUE); retired, no longer offered, so pick the delivery option that works best for you.

The official registration fee is Approx. $150–$250 USD (varies by region), and you will need 68% (47 out of 69 questions) to pass. Here is the part people forget: fail, and the retake costs the same full fee again — there is no discount for a second attempt. Drill with the 195 practice questions from ExamCost until your scores are consistently past the mark, and only then spend that fee.

Yes — a free PDF demo lets you inspect the question quality and format before you pay a cent. Once you purchase, your SUN Sun Certified Developer for Java Web Services (SCDJWS) material comes with 365 days of free updates, and if that update period ever lapses, extending it costs just 50% of the price in your member zone.

The exam contains 69 questions to be finished within 150 minutes. That ratio is tighter than most candidates expect, which is why pacing matters as much as knowledge. Practice skipping and returning to hard questions, set yourself a per-question time budget, and complete at least two full timed mock exams in the ExamCost engine so you feel the clock pressure before it actually counts.

Must hold Sun Certified Programmer for Java 2 Platform (any edition) or equivalent Oracle Java SE certification Vendor requirements do change from time to time, so confirm the current criteria before scheduling — the official 310-230 exam page has the final word.

Two promises, both in writing. First, delivery: your files unlock for instant download the moment payment clears, a copy hits your mailbox within a minute, and you can install the material on unlimited computers — if 2 hours pass without anything arriving, contact our 24/7 support team. Second, the 100% Money Back Guarantee: take the corresponding 310-230 exam within 60 days of purchase, and if you don't pass, submit a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam for a full refund, processed within 7 days. Conditions apply — exams taken within 3 days of purchase don't qualify, the candidate name must match the payer's, and free materials or expired orders are excluded. Rather keep studying? Exchange your order for two other exam products of equal value, free of charge, while your original updates continue.

Yes — the vendor's recommended courses are listed here:

• Java Web Services Developer Pack (JWSDP)

Courses teach the theory, but they cannot tell you whether you are ready. After finishing any of them, benchmark yourself with the 310-230 practice questions from ExamCost and find the gaps before the exam does.