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DP-203 Practice Question: Which THREE components are part of a…
Which THREE components are part of a defense-in-depth strategy for data security in Azure?
⚠ Common exam trap
It's easy for candidates to confuse governance controls (like Azure Policy tagging) with actual security controls, or they assume dynamic data masking is a core defense layer when it is merely a data obfuscation feature that does not prevent unauthorized access or encryption.
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
✓
Network security groups (NSGs) on subnets
Network security groups (NSGs) are a fundamental component of a defense-in-depth strategy because they provide network-layer segmentation and filtering. By applying NSGs to subnets, you can control inbound and outbound traffic based on source/destination IP addresses, ports, and protocols, creating a perimeter defense that limits lateral movement in case of a breach.
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 Policy to enforce tagging
Why it's wrong here
Azure Policy is for governance and compliance, not a security layer.
- ✓
Network security groups (NSGs) on subnets
Why this is correct
NSGs provide network-level security by filtering traffic.
- ✓
Data classification and labeling
Why this is correct
Data classification helps identify sensitive data and apply appropriate controls.
- ✓
Encryption at rest for storage accounts
Why this is correct
Encryption at rest protects data if physical media is compromised.
- ✗
Dynamic data masking for all databases
Why it's wrong here
Dynamic data masking is a feature, not a defense-in-depth layer; it's part of access control.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 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 DP-203 exam.