Question 79 of 988
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350-701 Network Security Practice Question

This 350-701 practice question tests your understanding of network security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.

An engineer is configuring Cisco Firepower Threat Defense (FTD) in inline NGFW mode. The access control policy must block all traffic from geolocation 'North Korea' and allow all other traffic. Which type of rule should be used and in what order should it be placed?

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

Block rule with source geolocation North Korea, placed at the top of the policy.

Geolocation filtering is applied in access control rules. The block rule must be placed before any allow rules to ensure traffic from North Korea is blocked. Rule order is top-down.

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.

  • Block rule with source geolocation North Korea, placed at the top of the policy.

    Why this is correct

    Correct. Block rule at the top ensures all traffic from North Korea is blocked before any allow rule is evaluated.

    Related concept

    Standard ACLs match source addresses.

  • Intrusion policy with geolocation filter, placed before access control rules.

    Why it's wrong here

    Geolocation filtering is not done in intrusion policies; it's in access control rules.

  • Block rule with source geolocation North Korea, placed at the bottom of the policy.

    Why it's wrong here

    Placing at the bottom may cause traffic to be allowed by a higher rule.

  • Permit rule with destination geolocation North Korea, placed at the top.

    Why it's wrong here

    A permit rule would allow traffic, not block.

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.

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.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

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.

Related practice questions

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FAQ

Questions learners often ask

What does this 350-701 question test?

Network Security — This question tests Network Security — Standard ACLs match source addresses..

What is the correct answer to this question?

The correct answer is: Block rule with source geolocation North Korea, placed at the top of the policy. — Geolocation filtering is applied in access control rules. The block rule must be placed before any allow rules to ensure traffic from North Korea is blocked. Rule order is top-down.

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.

What is the key concept behind this question?

Standard ACLs match source addresses.

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Last reviewed: Jul 4, 2026

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