Exam Essentials

Describe some of the GUI tools available to assist in testing and troubleshooting. These include protocol analyzers, throughput testers, and connectivity software. Understand each product’s purpose and how to use it.

Know how to describe and use the troubleshooting information and statistics that arp, nbtstat, and netstat provide for you. The arp utility shows whether an IP address is being resolved to your MAC address (or someone else’s, in case of conflicts). The netstat utility produces TCP/IP statistics, and nbtstat produces NetBIOS over TCP/IP statistics.

Know how to diagnose a network by using TCP/IP’s troubleshooting commands. The ping command echoes back if a machine is alive and active on a network. The tracert command shows the path that the ping packets take from source to target. And telnet enables a user to participate in a remote text-based session.

Know what the tracert utility does. The tracert utility finds the route from your computer...