The answer is that the access-list is not referenced in any policy-map or class-map. On Cisco Firepower Threat Defense (FTD), an access-list alone is merely a definition of traffic matching criteria; it has no enforcement capability until it is explicitly invoked within a policy-map via a class-map. This is a fundamental distinction from traditional IOS ACLs applied directly to interfaces—here, the modular policy framework requires the access-list to be tied to a policy-map action, such as inspect or block, for it to actually filter traffic. On the Cisco SCOR 350-701 exam, this concept tests your understanding of Firepower’s policy-based architecture, where a common trap is assuming that defining an ACL globally is sufficient to block traffic. Remember: an ACL without a policy-map is like a locked door with no frame—it exists but does nothing. A useful memory tip is “No policy, no block”—the policy-map is the engine that drives the access-list’s enforcement.
350-701 Endpoint Protection and Detection Practice Question
This 350-701 practice question tests your understanding of endpoint protection and detection. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
```
hostname FTD
!
policy-map global_policy
class class-default
inspect ftp
inspect dns
inspect http
inspect icmp
!
access-list AMP_block extended deny ip any any rule-id 1000
access-list AMP_block remark AMP Quarantine
!```
Based on the exhibit, what is the most likely reason that traffic matching the AMP_block access-list is not being blocked?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
```
hostname FTD
!
policy-map global_policy
class class-default
inspect ftp
inspect dns
inspect http
inspect icmp
!
access-list AMP_block extended deny ip any any rule-id 1000
access-list AMP_block remark AMP Quarantine
!```
A
The remark command is incorrectly formatted
Why wrong: Remarks are for documentation and have no impact on traffic filtering.
B
The policy-map does not include a pass or block action for the access-list
Why wrong: In FTD, access-lists are applied via policy-maps using 'class-map' and 'policy-map' commands; a standalone access-list without a policy-map action has no effect.
C
The access-list is not referenced in any policy-map or class-map
The access-list must be referenced in a policy-map (e.g., via a class-map) to be enforced; the exhibit shows no such reference.
D
The access-list is not applied to an interface
Why wrong: On FTD, access-lists can be applied globally or per interface, but the exhibit lacks any application of the list.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The access-list is not referenced in any policy-map or class-map
Option D is correct. The AMP_block access-list is defined but not referenced in any policy-map, so it is not applied to traffic. Option A is wrong because the policy-map uses inspect commands, which do not automatically apply access-lists. Option B is wrong because remarks do not affect functionality. Option C is wrong because an access-list applied globally on an FTD does not require an interface; however, the issue is that it is not referenced in a policy, not that an interface is missing.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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 remark command is incorrectly formatted
Why it's wrong here
Remarks are for documentation and have no impact on traffic filtering.
✗
The policy-map does not include a pass or block action for the access-list
Why it's wrong here
In FTD, access-lists are applied via policy-maps using 'class-map' and 'policy-map' commands; a standalone access-list without a policy-map action has no effect.
✓
The access-list is not referenced in any policy-map or class-map
Why this is correct
The access-list must be referenced in a policy-map (e.g., via a class-map) to be enforced; the exhibit shows no such reference.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
The access-list is not applied to an interface
Why it's wrong here
On FTD, access-lists can be applied globally or per interface, but the exhibit lacks any application of the list.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Trap categories for this question
Command / output trap
In FTD, access-lists are applied via policy-maps using 'class-map' and 'policy-map' commands; a standalone access-list without a policy-map action has no effect.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related 350-701 ACL questions on filtering logic and placement.
Endpoint Protection and Detection — This question tests Endpoint Protection and Detection — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The access-list is not referenced in any policy-map or class-map — Option D is correct. The AMP_block access-list is defined but not referenced in any policy-map, so it is not applied to traffic. Option A is wrong because the policy-map uses inspect commands, which do not automatically apply access-lists. Option B is wrong because remarks do not affect functionality. Option C is wrong because an access-list applied globally on an FTD does not require an interface; however, the issue is that it is not referenced in a policy, not that an interface is missing.
What should I do if I get this 350-701 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related 350-701 ACL questions on filtering logic and placement.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Standard ACLs match source addresses.
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