The blog says the exam has 180 qns and 5 hrs to take . I think its incorrect information . Below are details from Sun :
Details
Prerequisites: Sun Certified Programmer for the
Java 2 Platform (any edition)
Exam type: Multiple-Choice, Scenario-based questions and Drag-and-Drop questions
Number of questions: 61
Pass score: 59% (36 of 61 questions)
Time limit: 145 minutes