When you're studying to pass the CCNA test and make your certification, you're presented to an excellent many terms that are either absolutely new to you or seem familiar, however you're not quite sure what they are. The term "collision domain" falls into the latter classification for lots of CCNA candidates.What exactly is" colliding "in the very first location, and why do we care? It's the data that is being sent out onto an Ethernet section that we're concerned with here. Ethernet uses Carrier Sense Multiple Access/ Collision Detection (CSMA/CD) to avoid crashes in the first location. CSMA/CD is a set of rules determining when hosts on an Ethernet section can and can not transfer information. Basically, a host that wishes to send data will "listen" to the ethernet sector to see if another host is presently transmitting. If no one else is sending, the host will move forward with its own transmission.This is an effective way of avoidin...