This is one of the best Study Materials for CS-09 ” Networking” MCA III Semester Students. In this book, question papers of the previous year exams as well as their solutions have been given. In this book, you can also identify the problems and their solutions.All things are as per the Syllabus. No other Study Material can give you more perfect idea about the examination, the problems one faces in the exam, questions pattern etc., than this one. There are three question paper sets in this book which are also important and according to the examination pattern.Every effort has been made to make the book simple and error-free. I welcome any constructive criticism of the book and will be grateful for any honest appraisal from the readers.