- A
Disable the browser's developer mode in the settings.
Why wrong: Disabling developer mode does not prevent extension installation; it only removes some advanced features.
- B
Set the browser to always use private browsing mode.
Why wrong: Private browsing does not affect extension installation; it only prevents local history saving.
- C
Use Group Policy to block extension installation and whitelist approved extensions.
Group Policy allows administrators to centrally control browser settings, including blocking extensions and allowing only approved ones.
- D
Install a pop-up blocker on each computer.
Why wrong: Pop-up blockers do not prevent extension installation; they only suppress unwanted windows.
Question 463 of 750
How to Block Unauthorized Browser Extensions Using Group Policy
This 220-1202 practice question tests your understanding of browser and application security. 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 small business owner asks you to configure their office computers so that employees cannot install unauthorized browser extensions. Which policy setting should you implement?
Quick Answer
The answer is to use Group Policy to block extension installation and whitelist approved extensions. This is the correct choice because Group Policy provides centralized administrative control over Windows environments, allowing you to enforce browser restrictions across all domain-joined computers at once, rather than configuring each machine individually. On the CompTIA A+ Core 2 220-1202 exam, this scenario tests your understanding of Windows security policies and administrative tools, often appearing as a scenario where you must choose between Local Security Policy, Group Policy, or user account control settings—a common trap is selecting UAC, which only prompts for permission rather than preventing installation. Remember that Group Policy is the only tool that can both block unauthorized browser extensions and whitelist approved ones across an entire network, making it the enterprise-grade solution for this task. A helpful memory tip: think of Group Policy as the "gatekeeper" that locks the door to unwanted extensions while keeping a list of approved visitors.
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
✓
Use Group Policy to block extension installation and whitelist approved extensions.
Group Policy allows centralized management of browser settings in a domain environment. By configuring the 'Configure the list of force-installed extensions' and 'Block external extensions' policies, an administrator can whitelist approved extensions and prevent users from installing any others. This directly addresses the requirement to block unauthorized browser extensions.
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.
- ✗
Disable the browser's developer mode in the settings.
Why it's wrong here
Disabling developer mode does not prevent extension installation; it only removes some advanced features.
- ✗
Set the browser to always use private browsing mode.
Why it's wrong here
Private browsing does not affect extension installation; it only prevents local history saving.
- ✓
Use Group Policy to block extension installation and whitelist approved extensions.
Why this is correct
Group Policy allows administrators to centrally control browser settings, including blocking extensions and allowing only approved ones.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Install a pop-up blocker on each computer.
Why it's wrong here
Pop-up blockers do not prevent extension installation; they only suppress unwanted windows.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between user-configurable browser settings (like disabling developer mode or enabling private browsing) and centrally enforced Group Policy settings that cannot be overridden by the user.
Detailed technical explanation
How to think about this question
Group Policy for Chromium-based browsers (e.g., Chrome, Edge) uses Administrative Templates (ADMX files) to enforce policies like 'ExtensionInstallBlocklist' and 'ExtensionInstallAllowlist'. These policies are stored in the Windows Registry under HKLM\Software\Policies\Google\Chrome or Microsoft\Edge, and are applied at machine startup or user logon, ensuring users cannot bypass them through browser settings. In a real-world scenario, an enterprise might whitelist only a password manager and a PDF viewer, blocking all other extensions to reduce attack surface.
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.
TExam Day Tips
- 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Browser and Application Security — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Browser and Application Security — This question tests Browser and Application Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Group Policy to block extension installation and whitelist approved extensions. — Group Policy allows centralized management of browser settings in a domain environment. By configuring the 'Configure the list of force-installed extensions' and 'Block external extensions' policies, an administrator can whitelist approved extensions and prevent users from installing any others. This directly addresses the requirement to block unauthorized browser extensions.
What should I do if I get this 220-1202 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 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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