just want to share it, I got an ebook titled CCNA Certification All In One For Dummies, if we already know from the title bahawa just for beginners only. but what wrong we know all the details, for me this ebook very helpful, because in it is very detailed.

I think, Author in this ebook is not necessary in doubt. he is Silviu Angelescu is a network and softwareengineer, consultant and

technical trainer, specialized in data networks, storage networks and

virtualization and Andrew Swerczek is a network engineer, computer lab instructor, and

technical.

hmmm ... I thought, seemed to linger for those interested can download here or here