IPS is primarily a __________-based engine.

Bahar F.Feb 5, 2026

IPS is primarily a signature-based engine, so A is your answer. The system compares traffic against a library of known attack patterns, and when a packet sequence matches a signature, it drops or resets the connection inline, which is what separates IPS from anomaly detection that builds behavioral baselines instead.

Eitan E.May 16, 2026

The correct answer is A, Signature. Check Point IPS is a signature-based engine at its core, meaning it detects threats by comparing network traffic against a library of known attack patterns, which Check Point calls protections. This is the foundational concept you need to know for the exam, and it maps directly to the IPS architecture section in the R81.20 courseware where they distinguish signature matching from behavioral analysis. A quick mnemonic that helps my students: think S for Signature, S for Snort-style, because the underlying inspection model works similarly to pattern-match engines like Snort. Anomaly detection (option D) is a separate capability in some security products, but the exam is asking about the primary engine type for Check Point IPS specifically, so do not let that distractor pull you off course.

Carlos M.Apr 29, 2026

A is correct. IPS engines work by comparing traffic against a database of known attack signatures, so when a packet matches a pattern tied to a known exploit or malware behavior, the engine blocks or logs it. That is the core of how it operates, not anomaly detection, which is more of an add-on or secondary layer in most implementations. D trips people up because anomaly detection sounds fancier, but the question is asking about the primary engine type, and that is signature-based. Keep that distinction clear for the exam because Check Point questions love to test whether you know the difference between what the engine is versus what supplemental features it can also do.

Orla P.May 3, 2026

Honestly I kept second-guessing myself and almost went with D, anomaly, because I had just been reading about behavior-based detection and it was fresh in my mind. What snapped me back was remembering that IPS operates by matching traffic against a known pattern library, so signature is the core engine and anomaly detection is more of an add-on capability some vendors layer on top.

Brenda K.Feb 13, 2026

Saw this exact wording on my sitting last spring and nearly burned 90 seconds second-guessing myself between A and D, but the moment I remembered that IPS works off a known-bad-pattern library, not a behavioral baseline, I circled A and moved on in under 15 seconds. Signature-based is the core engine, anomaly detection is the add-on layer, keep that hierarchy locked in your head and this one is a guaranteed quick win, do not flag it for review.

Anastasia B.May 6, 2026

Saw exactly this wording on my 77 exam, picked Signature without hesitating, A is correct.

Hiroshi T.Feb 1, 2026

The word "primarily" is doing real work here because modern IPS can also use anomaly detection, but the Check Point 156-727.77 blueprint is unambiguous that the IPS engine is signature-based at its core. Answer is A.