- A
Verify that the device's IP address is set to DHCP.
Why wrong: DHCP vs. static IP addresses affect network layer connectivity, not the 802.1X authentication process that uses certificates and credentials.
- B
Check if a CA certificate is installed and selected in the Wi-Fi network's advanced settings.
WPA2-Enterprise often requires a CA certificate to validate the server; if it is missing or not selected, the authentication will fail.
- C
Disable the proxy settings for that Wi-Fi network.
Why wrong: Proxy settings are used for HTTP traffic routing and are not related to the 802.1X authentication that occurs at the link layer.
- D
Configure a static MAC address on the device.
Why wrong: MAC address configuration is unrelated to 802.1X authentication; it might help if MAC filtering is enabled on the network, but that is not the typical cause of authentication failure.
Quick Answer
The answer is to check if a CA certificate is installed and selected in the Android Wi-Fi network's advanced settings. This is correct because WPA2-Enterprise with username and password authentication requires the Android device to validate the corporate server’s identity using a trusted Certificate Authority (CA) certificate; without it, the device refuses the connection as a security measure. On the CompTIA A+ Core 2 220-1202 exam, this scenario tests your understanding of enterprise authentication versus open networks—a common trap is assuming the issue is with IP configuration or MAC filtering, which are unrelated to certificate-based server validation. Remember that Android defaults to requiring server validation for WPA2-Enterprise, so the technician must either install the correct CA certificate or, in a lab or less secure environment, enable the “Do not validate” option. A useful memory tip: “Cert before connect” — always verify the CA certificate is trusted before troubleshooting other network settings.
220-1202 Mobile OS Features and Tools Practice Question
This 220-1202 practice question tests your understanding of mobile os features and tools. 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.
A technician is troubleshooting an Android device that is unable to connect to a corporate Wi-Fi network using WPA2-Enterprise with a username and password. The device connects successfully to other open Wi-Fi networks. Which Android setting should the technician check first to resolve the authentication failure?
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.
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
Check if a CA certificate is installed and selected in the Wi-Fi network's advanced settings.
For WPA2-Enterprise networks, Android often requires the user to install and trust a CA certificate for server validation. If the certificate is missing or untrusted, the connection will fail. The technician should check the Wi-Fi advanced settings for the network and ensure that the correct CA certificate is selected, or that the option to not validate the server certificate is enabled (though less secure). IP settings and proxy configurations are unrelated to authentication, and MAC filtering is a network-side issue.
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.
- ✗
Verify that the device's IP address is set to DHCP.
- ✓
Check if a CA certificate is installed and selected in the Wi-Fi network's advanced settings.
Why this is correct
WPA2-Enterprise often requires a CA certificate to validate the server; if it is missing or not selected, the authentication will fail.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable the proxy settings for that Wi-Fi network.
- ✗
Configure a static MAC address on the device.
Why it's wrong here
MAC address configuration is unrelated to 802.1X authentication; it might help if MAC filtering is enabled on the network, but that is not the typical cause of authentication failure.
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 220-1202 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.
What to study next
Got this wrong? Here's your next step.
Identify which 220-1202 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.
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Mobile OS Features and Tools — study guide chapter
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Mobile OS Features and Tools practice questions
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Mobile OS Features and Tools — This question tests Mobile OS Features and Tools — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Check if a CA certificate is installed and selected in the Wi-Fi network's advanced settings. — For WPA2-Enterprise networks, Android often requires the user to install and trust a CA certificate for server validation. If the certificate is missing or untrusted, the connection will fail. The technician should check the Wi-Fi advanced settings for the network and ensure that the correct CA certificate is selected, or that the option to not validate the server certificate is enabled (though less secure). IP settings and proxy configurations are unrelated to authentication, and MAC filtering is a network-side issue.
What should I do if I get this 220-1202 question wrong?
Identify which 220-1202 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.
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?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 19, 2026
This 220-1202 practice question is part of Courseiva's free CompTIA 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 220-1202 exam.
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