How does SCWCD compare in complexity with the SCJP exam?
The material you need to prepare for SCWD is less than that of SCJP. Most people find SCWCD to be easier than SCJP, but it clearly depends upon ones aptitude. Unlike SCJP, SCWCD has very few programmatic questions. Again, unlike SCJP, SCWCD requires one to memorize some topics like deployment descriptor, servlet API etc.