350-701 Network Security Practice Question
A Cisco FTD device is deployed inline and configured with an access control policy that includes a rule to block traffic from a specific source IP address. However, traffic from that IP is still passing through. What is the most likely cause?
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
✓
A trust rule exists before the block rule in the policy
In Cisco FTD, the access control policy rules are evaluated in order. If a rule earlier in the order permits the traffic (e.g., a trust rule), subsequent block rules are not evaluated. The rule order must be correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The rule is assigned to the wrong interface
Why it's wrong here
Rules are global by default; interface-specific rules require zone configuration.
- ✗
The intrusion policy is overriding the block action
Why it's wrong here
Intrusion policy does not override access control actions.
- ✗
The device is in passive mode
Why it's wrong here
Passive mode only monitors, but the device is inline.
- ✓
A trust rule exists before the block rule in the policy
Why this is correct
Correct. Traffic matching an earlier trust rule will bypass later block rules.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-701 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 350-701 exam.