SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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.
Exhibit
Refer to the exhibit.
```bicep
resource defenderCloudApp 'Microsoft.Security/customAssessmentAutomations@2021-07-01-preview' = {
name: 'myAssessment'
properties: {
description: 'Assessment for Defender for Cloud Apps'
severity: 'High'
supportedCloud: 'AWS'
}
}
```
Refer to the exhibit. You are deploying a custom assessment automation in Microsoft Defender for Cloud using Bicep. The deployment fails with an error that the resource type is not valid. 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.
Exhibit
Refer to the exhibit.
```bicep
resource defenderCloudApp 'Microsoft.Security/customAssessmentAutomations@2021-07-01-preview' = {
name: 'myAssessment'
properties: {
description: 'Assessment for Defender for Cloud Apps'
severity: 'High'
supportedCloud: 'AWS'
}
}
```
A
The API version is not supported.
Why wrong: The API version might be valid, but another issue is more likely.
B
The property 'supportedCloud' should be 'supportedClouds' as an array.
The correct property is 'supportedClouds' (plural) and expects an array.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The property 'supportedCloud' should be 'supportedClouds' as an array.
Option B is correct because in Bicep for Microsoft Defender for Cloud custom assessments, the property that defines which cloud environments the assessment applies to must be named 'supportedClouds' and must be an array of strings (e.g., ['Azure', 'AWS', 'GCP']). Using the singular 'supportedCloud' is invalid syntax and causes the deployment to fail with a resource type validation error.
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.
✗
The API version is not supported.
Why it's wrong here
The API version might be valid, but another issue is more likely.
✓
The property 'supportedCloud' should be 'supportedClouds' as an array.
Why this is correct
The correct property is 'supportedClouds' (plural) and expects an array.
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 name property is missing.
Why it's wrong here
The name is provided.
✗
The resource type is misspelled.
Why it's wrong here
The resource type is correct.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume the error is due to a simple typo in the resource type name (Option D) or an API version mismatch (Option A), when in fact the issue is a property name/syntax error that is specific to the Bicep/ARM schema for Defender for Cloud custom assessments.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Defender for Cloud custom assessments use the 'Microsoft.Security/assessmentMetadata' resource type, and the 'supportedClouds' property is defined in the ARM template schema as an array of allowed values (Azure, AWS, GCP). Bicep compiles to ARM JSON, and the ARM resource provider validates the schema strictly; using a singular property name that doesn't exist in the schema causes a validation failure at the resource provider level, not a compilation error. In real-world scenarios, this often occurs when copying examples from older documentation that used the singular form before the property was updated to support multi-cloud assessments.
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 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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 SC-900 question in full detail.
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The property 'supportedCloud' should be 'supportedClouds' as an array. — Option B is correct because in Bicep for Microsoft Defender for Cloud custom assessments, the property that defines which cloud environments the assessment applies to must be named 'supportedClouds' and must be an array of strings (e.g., ['Azure', 'AWS', 'GCP']). Using the singular 'supportedCloud' is invalid syntax and causes the deployment to fail with a resource type validation error.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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Question Discussion
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