- A
1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Enter interface configuration mode for GigabitEthernet0/1 4. Apply the ACL inbound with ip access-group ACL_NAME in 5. Exit configuration mode and verify with show access-lists
This order correctly follows the standard workflow: enter config mode, create the ACL, enter the interface, apply it inbound, then exit and verify. The ACL syntax permits HTTP (TCP port 80) from the source network to the specific server.
- B
1. Enter interface configuration mode for GigabitEthernet0/1 2. Apply the ACL inbound with ip access-group ACL_NAME in 3. Enter global configuration mode 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-lists
Why wrong: This is incorrect because you cannot apply an ACL to an interface before it exists. The ACL must be created first in global config mode.
- C
1. Enter global configuration mode 2. Enter interface configuration mode for GigabitEthernet0/1 3. Apply the ACL inbound with ip access-group ACL_NAME in 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-lists
Why wrong: This is incorrect because the ACL is applied before it is created. The correct order is to create the ACL first, then apply it.
- D
1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Exit configuration mode and verify with show access-lists 4. Enter interface configuration mode for GigabitEthernet0/1 5. Apply the ACL inbound with ip access-group ACL_NAME in
Why wrong: This is incorrect because verification should occur after the ACL is applied, not before. Also, exiting config mode prematurely is inefficient.
CCNA Network Services and Security Practice Question
This 200-301 practice question tests your understanding of network services and security. 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 following steps into the correct order to plan, configure, and apply an extended ACL that permits only HTTP traffic from the 192.168.1.0/24 network to the server 10.0.0.10, applied inbound on interface GigabitEthernet0/1.
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
1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Enter interface configuration mode for GigabitEthernet0/1 4. Apply the ACL inbound with ip access-group ACL_NAME in 5. Exit configuration mode and verify with show access-lists
After entering config mode, create the ACL to allow HTTP from the specified network to the server. Apply it inbound on the correct interface. Then exit and verify.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Enter interface configuration mode for GigabitEthernet0/1 4. Apply the ACL inbound with ip access-group ACL_NAME in 5. Exit configuration mode and verify with show access-lists
Why this is correct
This order correctly follows the standard workflow: enter config mode, create the ACL, enter the interface, apply it inbound, then exit and verify. The ACL syntax permits HTTP (TCP port 80) from the source network to the specific server.
Related concept
Authentication checks who the user is.
- ✗
1. Enter interface configuration mode for GigabitEthernet0/1 2. Apply the ACL inbound with ip access-group ACL_NAME in 3. Enter global configuration mode 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-lists
Why it's wrong here
This is incorrect because you cannot apply an ACL to an interface before it exists. The ACL must be created first in global config mode.
- ✗
1. Enter global configuration mode 2. Enter interface configuration mode for GigabitEthernet0/1 3. Apply the ACL inbound with ip access-group ACL_NAME in 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-lists
Why it's wrong here
This is incorrect because the ACL is applied before it is created. The correct order is to create the ACL first, then apply it.
- ✗
1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Exit configuration mode and verify with show access-lists 4. Enter interface configuration mode for GigabitEthernet0/1 5. Apply the ACL inbound with ip access-group ACL_NAME in
Why it's wrong here
This is incorrect because verification should occur after the ACL is applied, not before. Also, exiting config mode prematurely is inefficient.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Enter interface configuration mode for GigabitEthernet0/1 4. Apply the ACL inbound with ip access-group ACL_NAME in 5. Exit configuration mode and verify with show access-listsCorrect answer▾
Why this is correct
This order correctly follows the standard workflow: enter config mode, create the ACL, enter the interface, apply it inbound, then exit and verify. The ACL syntax permits HTTP (TCP port 80) from the source network to the specific server.
✗1. Enter interface configuration mode for GigabitEthernet0/1 2. Apply the ACL inbound with ip access-group ACL_NAME in 3. Enter global configuration mode 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-listsWrong answer — click to see why▾
Why this is wrong here
The ACL must be defined before it can be referenced in an ip access-group command.
Why candidates choose this
Candidates might think they can apply the ACL first and then define it, but the router will reject the application if the ACL does not exist.
✗1. Enter global configuration mode 2. Enter interface configuration mode for GigabitEthernet0/1 3. Apply the ACL inbound with ip access-group ACL_NAME in 4. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 5. Exit configuration mode and verify with show access-listsWrong answer — click to see why▾
Why this is wrong here
The ip access-group command references an ACL that does not yet exist, causing an error.
Why candidates choose this
Candidates might think they can enter interface config mode early and apply the ACL later, but the application command requires the ACL to already exist.
✗1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Exit configuration mode and verify with show access-lists 4. Enter interface configuration mode for GigabitEthernet0/1 5. Apply the ACL inbound with ip access-group ACL_NAME inWrong answer — click to see why▾
Why this is wrong here
Verifying before applying does not confirm the ACL is correctly applied to the interface. The show access-lists command only shows the ACL definition, not its application.
Why candidates choose this
Candidates might think they need to verify the ACL syntax before applying it, but the correct workflow is to apply first, then verify both the ACL and its interface binding.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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 200-301 questions on access control and AAA configuration.
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FAQ
Questions learners often ask
What does this 200-301 question test?
Network Services and Security — This question tests Network Services and Security — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: 1. Enter global configuration mode 2. Create the ACL with permit tcp 192.168.1.0 0.0.0.255 host 10.0.0.10 eq www 3. Enter interface configuration mode for GigabitEthernet0/1 4. Apply the ACL inbound with ip access-group ACL_NAME in 5. Exit configuration mode and verify with show access-lists — After entering config mode, create the ACL to allow HTTP from the specified network to the server. Apply it inbound on the correct interface. Then exit and verify.
What should I do if I get this 200-301 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related 200-301 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
About these practice questions
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Last reviewed: Jun 6, 2026
This 200-301 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 200-301 exam.
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