A. Application installed on Mac OS
B. External Device on Windows
Explanation:
Comprehensive and Detailed Explanation From Exact Extract of Forescout Platform Administration and Deployment:
According to the Forescout HPS Inspection Engine Configuration Guide and HPS Applications Plugin documentation, the properties that can be determined by the HPS Plugin are: Operating System (C) and HTTP banner (E).
HPS Plugin Capabilities:
According to the HPS Inspection Engine guide:
"The HPS (Host Property Scanner) Inspection Engine provides host properties for detecting endpoint characteristics including operating system, services, and applications."
The HPS plugin determines:
Operating System - OS type, version, service pack level HTTP Banner - Service versions from HTTP banner scanning Services and Applications - Running processes and installed software System Information - Hardware vendor, NIC vendor, etc. Operating System Detection:
According to the HPS Applications Plugin guide:
"Windows operating system information is detected by the HPS Applications Plugin, including:
Release, Package/flavor, Service Pack"
The plugin detects:
Windows OS versions (XP, Vista, 7, 8, 10, etc.)
Server editions (2003, 2008, 2012, 2016, etc.)
Service pack levels
OS build information
HTTP Banner Detection:
According to the HPS Inspection Engine guide:
"Service Banner: Indicates the service and version information, as determined by Nmap. HTTP banner scanning returns service identification information."
The HTTP banner property is resolved by NMAP scanning with the -sV parameter, which is part of the HPS plugin's classification capabilities.
Why Other Options Are Incorrect:
A. Application installed on Mac OS - The HPS Applications Plugin is for Windows applications only; it does not detect Mac OS applications
B. External Device on Windows - External Device detection is a separate property unrelated to HPS plugin discovery
D. AD group membership - This is determined by the User Directory plugin via LDAP, not the HPS plugin
Mac OS Applications ✗ No macOS-specific
External Devices ✗ No Network discovery
Referenced Documentation:
CounterACT Endpoint Module HPS Inspection Engine Configuration Guide v10.8 CounterACT HPS Applications Plugin Configuration Guide v2.1.4 About the HPS Applications Plugin