Cisco CCNA Training

Résumé du livre

Networks and networking have grown exponentially over the last 15 years. They've had to evolve at light speed just to keep up with huge increases in basic missioncritical user needs such as sharing data and printers, as well as more advanced demands such as voice and video conferencing. Unless everyone who needs to share network resources is located in the same office area (an increasingly uncommon situation), the challenge is to connect the sometimes many relevant networks together so all users can share the network resources.

It's also likely that at some point, you'll have to break up one large network into a number of smaller ones because user response has decresed to a trickle as the network grew and grew and LAN traffic congestion reached overwhelming proportions. Breaking up a larger network into a number of smaller ones is called network segmentation, and it's accomplished using routers, switches, and bridges.

The reason for this book is to help you with your Cisco certification by covering the essentials you need in order to pass the CCNA exams.