CCNA Network Infrastructure and Connectivity Practice Question
This 200-301 practice question tests your understanding of network infrastructure and connectivity. 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.
Network Topology
You are troubleshooting a wireless client association failure on a Cisco WLC. A client reports it can see the SSID 'GuestNet' but fails to connect, while another client using the same SSID connects fine. You must check the WLC configuration, identify the cause, and fix it so that both clients can associate successfully.
WLC# show wlan summary
Number of WLANs.................................. 3
WLAN ID WLAN Profile Name / SSID Status Interface
------- ------------------------------------ -------- ----------
1 Corporate / CorpNet Enabled management
2 Guest / GuestNet Enabled guest
3 IoT / IoTSensors Disabled iot
WLC# show wlan 2
WLAN Profile Name ........................... Guest
SSID ......................................... GuestNet
Status ...................................... Enabled
Security Policies:
WPA3 ...................................... Enabled
WPA3 Transition Mode ...................... Disabled
WPA3 PMF (Protected Management Frames) ... Required
Interface ................................... guest
Broadcast SSID .............................. Disabled
WLC# show interface detailed guest
Interface Name .............................. guest
VLAN ........................................ 200
IP Address .................................. 192.168.20.1
Subnet Mask ................................. 255.255.255.0
WLC# ping 192.168.20.100
!!!!!
Success rate is 100 percent (5/5)
WLC# show client summary
Client MAC AP Name WLAN/SSID State
---------------- ----------- ----------------- ----------
aaaa.bbbb.cccc AP-1 GuestNet Associated
1111.2222.3333 AP-1 GuestNet Associated
A
Change the WLAN security to WPA2-PSK only and disable PMF.
Why wrong: This is incorrect because disabling PMF entirely may reduce security for all clients, and WPA2-only does not allow newer clients to use WPA3. The goal is to support both legacy and modern clients.
B
Enable WPA3 Transition Mode and set PMF to Optional.
Why this is correct: WPA3 Transition Mode allows both WPA2 and WPA3 clients to associate, and setting PMF to Optional ensures that clients not supporting PMF (like legacy WPA2 clients) can still connect. This resolves the issue while maintaining security for capable clients.
C
Disable PMF on the WLAN and keep WPA3 enabled.
Why wrong: This is incorrect because disabling PMF while keeping WPA3 enabled does not help; the legacy client still cannot use WPA3. The client needs WPA2 support, which requires WPA3 Transition Mode.
D
Change the WLAN to use WPA2-PSK with PMF Required.
Why wrong: This is incorrect because WPA2 does not support PMF Required; PMF is optional in WPA2. Also, this would not allow WPA3 clients to use the network, and the legacy client may still fail if it does not support PMF.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable WPA3 Transition Mode and set PMF to Optional.
The client that cannot associate is likely a legacy client that does not support WPA3. The WLAN 'GuestNet' has WPA3 enabled with 'PMF Required', which forces all clients to support WPA3 and PMF. To fix this, enable WPA3 Transition Mode (which allows both WPA2 and WPA3 clients) and set PMF to Optional. This will allow the older client to associate using WPA2 while newer clients can use WPA3.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Change the WLAN security to WPA2-PSK only and disable PMF.
Why it's wrong here
This is incorrect because disabling PMF entirely may reduce security for all clients, and WPA2-only does not allow newer clients to use WPA3. The goal is to support both legacy and modern clients.
✓
Enable WPA3 Transition Mode and set PMF to Optional.
Why this is correct
Why this is correct: WPA3 Transition Mode allows both WPA2 and WPA3 clients to associate, and setting PMF to Optional ensures that clients not supporting PMF (like legacy WPA2 clients) can still connect. This resolves the issue while maintaining security for capable clients.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable PMF on the WLAN and keep WPA3 enabled.
Why it's wrong here
This is incorrect because disabling PMF while keeping WPA3 enabled does not help; the legacy client still cannot use WPA3. The client needs WPA2 support, which requires WPA3 Transition Mode.
✗
Change the WLAN to use WPA2-PSK with PMF Required.
Why it's wrong here
This is incorrect because WPA2 does not support PMF Required; PMF is optional in WPA2. Also, this would not allow WPA3 clients to use the network, and the legacy client may still fail if it does not support PMF.
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.
✓Enable WPA3 Transition Mode and set PMF to Optional.Correct answer▾
Why this is correct
Why this is correct: WPA3 Transition Mode allows both WPA2 and WPA3 clients to associate, and setting PMF to Optional ensures that clients not supporting PMF (like legacy WPA2 clients) can still connect. This resolves the issue while maintaining security for capable clients.
✗Change the WLAN security to WPA2-PSK only and disable PMF.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: Disabling PMF entirely is not necessary; PMF can be set to Optional to allow both PMF-capable and non-PMF clients.
Why candidates choose this
Candidates might think that forcing WPA2-only is the simplest fix, but it ignores the need to support WPA3 clients and may violate security policies.
✗Disable PMF on the WLAN and keep WPA3 enabled.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: Disabling PMF alone does not allow a WPA2-only client to associate with a WPA3-only WLAN; the WLAN must also support WPA2.
Why candidates choose this
Candidates may think PMF is the only issue, but the core problem is the authentication protocol mismatch (WPA3 vs WPA2).
✗Change the WLAN to use WPA2-PSK with PMF Required.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: PMF Required is only supported with WPA3; WPA2 only supports PMF Optional. Additionally, this configuration would not support WPA3 clients.
Why candidates choose this
Candidates might think that requiring PMF enhances security, but they overlook that the legacy client may not support PMF, and WPA2 cannot enforce PMF.
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: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable WPA3 Transition Mode and set PMF to Optional. — The client that cannot associate is likely a legacy client that does not support WPA3. The WLAN 'GuestNet' has WPA3 enabled with 'PMF Required', which forces all clients to support WPA3 and PMF. To fix this, enable WPA3 Transition Mode (which allows both WPA2 and WPA3 clients) and set PMF to Optional. This will allow the older client to associate using WPA2 while newer clients can use WPA3.
What should I do if I get this 200-301 question wrong?
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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