Which of the following is an example of a device used for intrusion detection?
A.
Router
B.
Switch
C.
Firewall
D.
Host-based IDS
The Answer Is:
D
This question includes an explanation.
Explanation:
A Host-based Intrusion Detection System (IDS) is a device or software application used to monitor and analyze the internals of a computing system (host) for malicious activity or policy violations. Unlike routers, switches, or even firewalls, which focus on network traffic or connectivity, a host-based IDS operates on individual machines to detect unauthorized activity or changes.
[Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3.6 (“Intrusion detection and prevention”); Glossary: “Intrusion Detection System (IDS).”, , ]
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