The answer is that some resources are in a different resource group than expected. This occurs because the PowerShell script uses Get-AzResource to retrieve all resources across the entire subscription, but the subsequent lock creation command explicitly references the -ResourceGroupName parameter. When a high-confidentiality resource tagged with 'Confidentiality=High' resides in a resource group different from the one the script resolves, the lock either fails to apply or applies to the wrong group, leaving the resource unprotected. On the Microsoft Cybersecurity Architect exam, this scenario tests your understanding of how Azure PowerShell cmdlets handle scope—a common trap is assuming Get-AzResource automatically passes the correct resource group context to downstream commands. To troubleshoot a resource lock script for high confidentiality resources, always verify that the resource group parameter matches the resource’s actual location. Memory tip: “Scope mismatch sinks the lock”—if the group doesn’t match, the lock won’t latch.
SC-100 Practice Question: Design security solutions for applications and data
This SC-100 practice question tests your understanding of design security solutions for applications and data. 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.
Refer to the exhibit. You run the PowerShell script to protect high-confidentiality resources. After execution, you find that some resources with tag 'Confidentiality=High' are still unprotected. What is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Some resources are in a different resource group than expected.
Option B is correct because the script uses Get-AzResource which returns resources from all resource groups, but the lock creation uses -ResourceGroupName parameter. If a resource is in a different resource group than the one resolved from the resource object, the lock might fail or apply incorrectly. Option A is wrong because the script does not check for existing locks correctly, but the main issue is the resource group mismatch. Option C is wrong because the script checks for locks before creating new ones. Option D is wrong because tag inheritance is not the 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.
✓
Some resources are in a different resource group than expected.
Why this is correct
The script assumes resource group from the resource object.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The script does not check for existing locks properly.
Why it's wrong here
It does check, but the issue is elsewhere.
✗
Tags are not inherited from resource groups.
Why it's wrong here
Tags are on resources directly.
✗
The script overwrites existing locks.
Why it's wrong here
It only creates if no lock exists.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-100 question in full detail.
Identify which SC-100 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.
Design security solutions for applications and data — This question tests Design security solutions for applications and data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Some resources are in a different resource group than expected. — Option B is correct because the script uses Get-AzResource which returns resources from all resource groups, but the lock creation uses -ResourceGroupName parameter. If a resource is in a different resource group than the one resolved from the resource object, the lock might fail or apply incorrectly. Option A is wrong because the script does not check for existing locks correctly, but the main issue is the resource group mismatch. Option C is wrong because the script checks for locks before creating new ones. Option D is wrong because tag inheritance is not the issue.
What should I do if I get this SC-100 question wrong?
Identify which SC-100 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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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