Introduction to networks v6 :  companion guide / 
Cisco Networking Academy 
 - xxviii, 663 pages :  Illustration ;  25 cm. 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>9781587133602 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Local area networks (Computer networks)<br/>Data transmission systems