To add to the other answers, if you are caught using braindumps you can have your certification revoked and a lifetime ban on retaking the exams. It is not worth it and also doesn't prove you have learned the subject, just the answers. Learn by practicing with all the technologies and reading the exam prep books. Books online is a great **free** resource for learning too.
I want to suggest to make sure you have enough knowledge about SQL Sever before you take the Implementation and Maintenace 70-432.
I took that exam last 9 months ago, it took me nearly 4 months to read the relevant books and also need to add my experience helped me to take that exam. To be honest with you, nearly 50% of experience are coming from BOL, Forum. [SQL Server Central], [Ask SQL Server Central], Etc.. those web sites are really helpful.
I believed that some company are looking for someone who has a Certificate but experience is more important in the real life.
It might help you to just pass the exam if someone gave you a exam paper but it can't help you in real life (Daily DBA work).
Good Luck with your exam. :
Next time you get on a plane, ask yourself whether you would prefer to have your pilot be someone who spent hours and hours of training over the course of months and years or would you trust yourself with someone who read a few books and played on a flight sim a couple of times...? Get involved with SQL Server, learn how it works by using it, developing it and fixing it. A lot more people will trust you that way.
First of all i want to thank you all, I know just clearing the Certification will not incease my knowledge. From last continious 3 month i trying to get the knowledge from different site and book to crack my exam. i beleve that knowledge is more important than any certification. i have one doubt that weather the simulation type Question come in this exam or not as it came in 70-431 exam. if any one have given this exam ,please tell me weather it come or not.