I feel that 20 to 30 seminars presentable at college can be made from Computer Networks by Tanenbaum.Right/x?

Answer 1

Sure, Computer Networks by Andrew Tanenbaum could be read cover to cover in a typical 1-semester 3 or 4-credit undergraduate university course in networking. That could be 15 seminars/lectures if meeting once per week, or 30 if meeting twice per week. Look through the preface, there are notes to instructors and there are instructor resources available like powerpoint slides, etc.

Answer 2

yes u can
n u can also use

forouzon (spelling is wrong)
It is really GOOD Book for Begginers and Exprets Both.