Antivirus Software Installed To Scan And Monitor Malware Activities On A Server Or Workstation Would Be Identified As A __________ Based Intrusion Detection/prevention System?

Host-based.  A Host Intrusion Prevention System or HIPS is a security program that will protect individual computers (aka 'hosts') against viruses and other
internet malware.

Othertypes would include Network Intrusion Prevention Systems which can protect against a network attack but not other attacks that would include, for example, an infected program in a portable USB drive/pen drive and Host Intrusion Detection Systems which will detect but cannot stop an attack.