|  | 5.5 |

Collisions and Collision Domains in Shared Layer Environments

| 5.5.5 | Shared access as a collision domain

As a networking professional, one important skill is the ability to recognize collision domains. If you connect several computers to a single medium that has no other networking devices attached, you have a shared-access situation, and you have a collision domain. Depending on the particular technology used, this situation limits the number of computers that can use that part of the medium, also called a segment.