350-701 Network Security Practice Question
A security engineer is tuning Snort rules on a Cisco FTD to reduce false positives. Which action should be taken if a rule is generating alerts for legitimate traffic?
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
✓
Disable the rule or set it to 'noalert'.
To reduce false positives, the rule can be disabled (noalert), thresholding can reduce alert frequency, or the rule can be modified to be more specific. Disabling is a common initial step if the rule is not needed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the rule action to 'reject'.
Why it's wrong here
Reject would drop legitimate traffic.
- ✗
Increase the priority of the rule.
Why it's wrong here
Priority affects alerting, not false positives.
- ✓
Disable the rule or set it to 'noalert'.
Why this is correct
Correct; disabling or setting to noalert stops false alerts.
- ✗
Add the rule to a custom policy with higher precedence.
Why it's wrong here
That would not reduce false positives.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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