This MD-102 practice question tests your understanding of manage applications. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Refer to the exhibit. You deploy this AppLocker policy via Microsoft Intune to Windows 10 devices. The policy is in AuditOnly mode. Users are now able to run unsigned executables. You need to block unsigned executables without affecting signed ones. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the EnforcementMode to 'Enabled' and add a deny rule for unsigned executables.
The rule allows all Microsoft signed apps but is in audit mode. To block unsigned, you must change EnforcementMode to Enabled and add a deny rule for unsigned. Option A is correct because simply enabling enforcement will block unsigned (since no allow rule for unsigned). Option B is incorrect because adding deny rule for signed would block signed. Option C is incorrect because deleting the rule would block all executables. Option D is incorrect because audit mode does not block.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Add a deny rule for all Microsoft signed executables.
Why it's wrong here
This would block desired signed apps.
✗
Keep the policy in AuditOnly and rely on Windows Defender to block unsigned apps.
Why it's wrong here
AuditOnly does not enforce; Defender may not block all.
✗
Delete the existing rule and create a new rule that explicitly allows only specific signed apps.
Why it's wrong here
Overly restrictive and complex.
✓
Change the EnforcementMode to 'Enabled' and add a deny rule for unsigned executables.
Why this is correct
Enabling enforcement with only allow rules for signed blocks unsigned.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related MD-102 ACL questions on filtering logic and placement.
Manage applications — This question tests Manage applications — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Change the EnforcementMode to 'Enabled' and add a deny rule for unsigned executables. — The rule allows all Microsoft signed apps but is in audit mode. To block unsigned, you must change EnforcementMode to Enabled and add a deny rule for unsigned. Option A is correct because simply enabling enforcement will block unsigned (since no allow rule for unsigned). Option B is incorrect because adding deny rule for signed would block signed. Option C is incorrect because deleting the rule would block all executables. Option D is incorrect because audit mode does not block.
What should I do if I get this MD-102 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related MD-102 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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