- A
Azure Network Security Groups (NSGs)
NSGs filter traffic between subnets and VMs, enabling microsegmentation.
- B
Azure Firewall
Why wrong: Azure Firewall is for network perimeter security.
- C
Azure App Service
Why wrong: App Service is a platform for web apps.
- D
Azure Front Door
Why wrong: Front Door is a global load balancer and WAF.
Question 582 of 1,411
SC-900 Practice Question: Describe the concepts of security, compliance, and identity
This SC-900 practice question tests your understanding of describe the concepts of security, compliance, and identity. 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.
Your company is adopting a Zero Trust network architecture. You need to implement microsegmentation for workloads running in Azure. Which Azure service should you use?
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
✓
Azure Network Security Groups (NSGs)
Azure Network Security Groups (NSGs) are the correct service for implementing microsegmentation because they allow you to create granular, stateful filtering rules based on source/destination IP addresses, ports, and protocols at the subnet or individual virtual machine (NIC) level. This enables east-west traffic segmentation between workloads within the same virtual network, which is a core principle of Zero Trust network architecture.
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.
- ✓
Azure Network Security Groups (NSGs)
Why this is correct
NSGs filter traffic between subnets and VMs, enabling microsegmentation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Azure Firewall
Why it's wrong here
Azure Firewall is for network perimeter security.
- ✗
Azure App Service
Why it's wrong here
App Service is a platform for web apps.
- ✗
Azure Front Door
Why it's wrong here
Front Door is a global load balancer and WAF.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Firewall (a perimeter security service) with NSGs (a microsegmentation tool), mistakenly thinking a centralized firewall can achieve the same east-west traffic isolation that NSGs provide at the subnet/NIC level.
Detailed technical explanation
How to think about this question
Microsegmentation with NSGs relies on the Azure virtual network filter driver, which evaluates each packet against a prioritized list of rules (default rules allow virtual network traffic and deny internet traffic). For true Zero Trust, you can combine NSGs with application security groups (ASGs) to define logical groupings of VMs and apply rules based on workload roles, rather than static IP addresses, enabling dynamic policy enforcement as workloads scale.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this SC-900 question test?
Describe the concepts of security, compliance, and identity — This question tests Describe the concepts of security, compliance, and identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Network Security Groups (NSGs) — Azure Network Security Groups (NSGs) are the correct service for implementing microsegmentation because they allow you to create granular, stateful filtering rules based on source/destination IP addresses, ports, and protocols at the subnet or individual virtual machine (NIC) level. This enables east-west traffic segmentation between workloads within the same virtual network, which is a core principle of Zero Trust network architecture.
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.
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 SC-900 practice question is part of Courseiva's free Microsoft 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 SC-900 exam.
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