Please use the Search facility (at the top of the forum) to look for more older threads in SCJA forum at JavaRanch. Examples of search words like mock, J2EE, J2ME, beta, etc.
What is the policy on posting questions I saw on the exam?
You may not describe or talk about the questions you saw on any of the Sun exams - see the JavaRanch's Policy on Real Questions for further details.
What other certifications do I need before I go for the SCJA certification?
No prerequisites for this certification.
Where can I find information on Cost / Location of exam sites in <your country>?
This information changes from time to time as Prometric regularly update their website. The basic idea is: