This CCNA Certification video describes the difference between IPS and IDS in a Cisco environment. Intrusion Prevention and Intrusion Detection although very similar in name and function do work differently and thus there seems to be quite a bit of confusion between the two services. So we are quite sure after you review this CCNA video you will have a good grasp on the differences between the two and be able to answer which is the smarter of the two and which one is adaptive.