Dedication
Michael Valentine: This one is for Andy DeMaria, a good boss and a stalwart friend.
Keith Barker: To Dan and Johnna Charbonneau and the CBT Nuggets family: If anyone had the opportunity to be surrounded by such awesome people, even for a few hours, they would never be the same again. Thank you!
Get Cisco CCNA Routing and Switching 200-120 Exam Cram, Fourth Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
