The Domain Naming System (DNS) is a glorious thing. It takes familiar Internet network and machine names (like "amazon.com") and converts them to Internet Protocol (IP) addresses (like "208.35.218.15") that are meaningful to routers and therefore useful for identifying the machine you want to reach. What's amazing is that DNS enables someone in Germany to refer, by name, to a computer in Mongolia even if no one in Germany has ever accessed the distant machine before. It's pretty much self-configuring, too: No human effort in Germany is necessary to make the Mongolian machine reachable by name. DNS and BIND explains how DNS works better for this than any other piece of documentation, printed or otherwise. The work of Paul Albitz and Cricket Liu, now in its fourth revision, has long been considered a classic among systems administrators and network architects, particularly those with a Unix bent.

# Paperback: 385 pages
# Publisher: Wiley (September 6, 2005)
# Language: English
# ISBN: 0471747548
# Product Dimensions: 9.2 x 7.4 x 0.8 inches
# Shipping Weight: 1.4 pounds.

* Les Freed shares his many years of networking experience and insider status to guide readers step by step through the confusing and intimidating world of home networking
* Features special emphasis on using the network for entertainment and digital media, offering invaluable how-to advice on sharing TV, video, photos, music, and more
* Begins with the need-to-know basics of networking, including the various types of networking equipment and choosing the right type of network
* Readers roll up their sleeves and actually construct their network-either wired or wireless-or by even using the existing electrical wiring already in the walls of their home
* Shows readers how to set up all the necessary software on their Windows XP PC or Apple Mac OS X computer so they can quickly, easily, and safely share files, printers, and Internet connections .

This exam certifies that candidates know the layers of the OSI model, can describe the features and functions of network components, and have the skills needed to install, configure, and troubleshoot basic networking hardware peripherals and protocols. The certification is endorsed by Microsoft (as part of its popular new MCSA program), Cisco, Novell, and 3Com, among others. This book is not intended to teach new material. Instead it assumes that you have a solid foundation of knowledge but can use a refresher on important concepts as well as a guide to exam topics and objectives. This book focuses exactly on what you need to know to pass the exam - it features test-taking strategies, time-saving study tips, and a special Cram Sheet that includes tips, acronyms, and memory joggers not available anywhere else. The series is supported online at several Web sites: examcram.com, informit.com, and cramsession.com.