Question 1,734 of 2,015

ACLs and CoPP →mediumDrag & DropObjective-mapped

Quick Answer

The correct answer is to apply the ACL to the interface with the ipv6 traffic-filter command as the final step. This order is dictated by standard Cisco IOS logic: you must first create the IPv6 ACL in global configuration mode using the ipv6 access-list command, defining your permit or deny statements, and only then can you apply that named ACL to a specific interface in the inbound or outbound direction. On the ENCOR 350-401 exam, this drag-and-drop task tests your understanding that IPv6 ACLs follow the same sequential workflow as IPv4 ACLs, but with the distinct ipv6 traffic-filter command instead of ip access-group. A common trap is confusing the order of creation versus application—students often try to apply a non-existent ACL. Remember the mnemonic: Create first, then filter—you cannot traffic-filter what does not yet exist.

350-401 ACLs and CoPP Practice Question

This 350-401 practice question tests your understanding of acls and copp. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.

Drag and drop the steps of IPv6 ACL configuration and application into the correct order, from first to last.

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

Question 1mediumdrag order

Study the full ACL explanation →

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

✓

Enter global configuration mode

IPv6 ACLs are created in global config, then applied to an interface in the inbound or outbound direction. The order follows standard Cisco IOS configuration sequence: create the ACL, then apply it.

Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

Common exam traps

Common exam trap: authentication is not authorization

Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.

Detailed technical explanation

How to think about this question

This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.

KKey Concepts to Remember

Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.

TExam Day Tips

Do not assume successful login means full administrative access.
Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
Separate login problems from permission problems before choosing the answer.

Key takeaway

Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

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 Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related 350-401 questions on access control and AAA configuration.

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FAQ

Questions learners often ask

What does this 350-401 question test?

ACLs and CoPP — This question tests ACLs and CoPP — Authentication checks who the user is..

What is the correct answer to this question?

The correct answer is: Enter global configuration mode — IPv6 ACLs are created in global config, then applied to an interface in the inbound or outbound direction. The order follows standard Cisco IOS configuration sequence: create the ACL, then apply it.

What should I do if I get this 350-401 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Authentication checks who the user is.

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Last reviewed: Jun 18, 2026

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