What is the main role of a Host-Based Intrusion Prevention System (HIPS)?

Question

Options

• ATo block unauthorized users
• BTo encrypt network traffic
• CTo monitor and prevent suspicious activity on endpoints
• DTo perform data backups

• B
  4% (1)
• C
  93% (26)
• D
  4% (1)

Explanation

A Host-Based Intrusion Prevention System (HIPS) runs directly on an endpoint (like a laptop or server) and actively monitors processes, file activity, and system calls to detect and block suspicious behavior in real time - making C the correct answer. It goes beyond detection by taking automated action to stop threats before damage occurs.

Why the distractors are wrong:

• A - Blocking unauthorized users is the role of authentication systems or firewalls, not HIPS.
• B - Encrypting network traffic is handled by protocols like TLS/IPsec or VPNs, not intrusion prevention.
• D - Data backups are performed by backup software or services (e.g., Windows Backup, Veeam), which have no overlap with intrusion prevention.

Memory tip: Think of HIPS as a security guard living inside your computer - it watches everything happening on the host itself and physically stops suspicious activity, rather than guarding the door (firewall) or locking a safe (encryption).

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