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200-201 Practice Question: Which TWO actions are recommended when tuning IDS…
Which TWO actions are recommended when tuning IDS signatures to reduce false positives?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Modify signature thresholds to match typical traffic patterns
Options C and E are correct. Modifying signature thresholds to match typical traffic patterns (C) and whitelisting known good behavior (E) are standard IDS tuning practices to reduce false positives. Option A is ineffective because increasing severity does not reduce false positive counts. Option B replaces the system rather than tuning it. Option D may remove detection of actual threats and is not recommended.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase alert severity for all signatures
Why it's wrong here
That does not reduce false positives.
- ✗
Replace IDS with a next-generation firewall
Why it's wrong here
That is a different solution, not a tuning action.
- ✓
Modify signature thresholds to match typical traffic patterns
Why this is correct
Adjusting thresholds reduces false positives.
- ✗
Disable signatures that generate frequent alerts
Why it's wrong here
Disabling may miss real attacks.
- ✓
Whitelist known good behavior
Why this is correct
Whitelisting reduces false positives for legitimate traffic.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-201 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-201 exam.