- A
Configure each browser's settings manually on every computer.
Why wrong: Manual configuration is time-consuming and error-prone, not scalable for a business environment.
- B
Use Group Policy to disable extension installation.
Group Policy provides centralized control to block extension installations across all domain-joined computers.
- C
Install a third-party firewall to block extension downloads.
Why wrong: A firewall can block network traffic but cannot control browser extension installation at the application level.
- D
Set the browser to private browsing mode.
Why wrong: Private browsing does not affect extension installation permissions.
Question 666 of 750
Block 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 wants to ensure that employees cannot install browser extensions or add-ons without administrator approval. Which method should the technician use to enforce this restriction across all company computers?
Quick Answer
The answer is to use Group Policy to disable extension installation. This is the correct method because Group Policy in Windows provides centralized administrative control over browser settings across all domain-joined computers, allowing IT to enforce restrictions such as blocking browser extensions without requiring manual configuration on each machine. On the CompTIA A+ Core 2 220-1202 exam, this question tests your understanding of enterprise-level security management versus local settings; a common trap is choosing a local security policy or registry edit, which lacks the scalability of Group Policy for an entire organization. Remember that Group Policy is the go-to tool for domain-wide browser controls, while local policies only affect a single computer. A helpful memory tip: think of Group Policy as the "group boss" that tells every browser in the company, "No add-ons without my say-so."
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 disable extension installation.
Group Policy (specifically the Administrative Templates for Google Chrome, Microsoft Edge, or Firefox) provides a centralized method to enforce browser settings across all domain-joined computers. By configuring the 'Block external extensions' or 'ExtensionInstallBlockList' policy, the technician can prevent users from installing extensions without administrator approval, ensuring consistent enforcement without manual intervention on each machine.
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.
- ✗
Configure each browser's settings manually on every computer.
Why it's wrong here
Manual configuration is time-consuming and error-prone, not scalable for a business environment.
- ✓
Use Group Policy to disable extension installation.
Why this is correct
Group Policy provides centralized control to block extension installations across all domain-joined computers.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Install a third-party firewall to block extension downloads.
Why it's wrong here
A firewall can block network traffic but cannot control browser extension installation at the application level.
- ✗
Set the browser to private browsing mode.
Why it's wrong here
Private browsing does not affect extension installation permissions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think a firewall or manual configuration is sufficient, but the A+ exam tests the understanding that Group Policy is the only centralized, scalable method for enforcing browser restrictions in a domain environment, while firewalls operate at the network layer and cannot intercept browser-internal operations.
Detailed technical explanation
How to think about this question
Group Policy for browsers leverages ADMX templates that map to registry keys under HKLM\Software\Policies\ for Chrome/Edge or via Firefox's policies.json file. The 'ExtensionInstallBlockList' policy uses a list of extension IDs or wildcards to block all extensions, while 'ExtensionInstallAllowList' can create exceptions. This approach works because browsers check these policies at startup and enforce them even if the user has local admin rights, as the policies are stored in machine-level registry locations that require elevated privileges to modify.
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
Learn the concepts, then practise the questions
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Browser and Application Security practice questions
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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 disable extension installation. — Group Policy (specifically the Administrative Templates for Google Chrome, Microsoft Edge, or Firefox) provides a centralized method to enforce browser settings across all domain-joined computers. By configuring the 'Block external extensions' or 'ExtensionInstallBlockList' policy, the technician can prevent users from installing extensions without administrator approval, ensuring consistent enforcement without manual intervention on each machine.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on 220-1202
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A small business owner wants to ensure that employees cannot install unauthorized browser extensions on company-managed Windows 10 computers. Which method should you use to enforce this restriction?
easy- A.Enable private browsing mode in each browser
- ✓ B.Configure Group Policy to block extension installation
- C.Set the browser homepage to a company-approved site
- D.Install an ad-blocker extension
Why B: Group Policy allows administrators to centrally manage Windows settings, including browser policies. By configuring the 'Block installation of extensions' policy under Administrative Templates for each browser (e.g., Chrome, Edge), you can prevent users from installing unauthorized extensions on company-managed Windows 10 computers.
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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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