The A+ exam lightly covers networking, yet many A+ technicians are faced with network duties before they have developed the hands-on skill. This work provides the information they need to successfully install and administer networked systems.

* Unique entry-level guide to Domain Name System (DNS), which translates Internet host names into IP addresses and is used with all Internet servers
* Shows how to install, configure, and troubleshoot DNS on both Windows and UNIX servers
* Helps people seeking technology certifications bone up on DNS theory, terminology, and architecture-a requirement in several popular exams
* Includes real-world examples based on the author's daily experience with both large and small networks