I cleared the CCNA(640-047) with 92% marks.It was really a interesting experience for me.The exam was really straight forward.If you have studied the Book thoroughly and done practice exams you can get it easily.but one thing to remember you should have some practical experience that can help a lot espacially for configuration questions.
I recommend to study Todd lamlle book thoroughly .there is some command missing in this book for which u can concern ICRC book.
some of the areas of question are;
1.OSI model questions espacially related to layer functions