DP-300 Plan and implement data platform resources Practice Question
Which TWO are valid ways to secure access to an Azure SQL Database?
⚠ Common exam trap
Candidates often confuse 'securing access' with 'authentication methods' and incorrectly assume that disabling firewall rules and relying solely on authentication (Option E) is valid, or they think an on-premises AD domain join (Option D) applies to Azure SQL Database, when in fact Azure SQL only supports Azure AD authentication and network-level controls like service endpoints or private endpoints are required for secure access.
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
✓
Configure a Virtual Network service endpoint
A Virtual Network service endpoint extends your virtual network private address space and the identity of your VNet to Azure SQL Database over a direct connection. This allows you to secure access by limiting connectivity to only traffic originating from a specific subnet in your VNet, effectively blocking public internet access while using the Azure backbone network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use IPsec VPN from on-premises
Why it's wrong here
Azure SQL Database does not support IPsec directly.
- ✓
Configure a Virtual Network service endpoint
Why this is correct
Restricts traffic to a specific VNet.
- ✓
Configure a Private Endpoint
Why this is correct
Provides private connectivity from a VNet.
- ✗
Join the database to an on-premises Active Directory domain
Why it's wrong here
Not supported.
- ✗
Disable all firewall rules and rely only on authentication
Why it's wrong here
Firewall rules are necessary to block unauthorized IP addresses.
Visual reference
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Azure SQL Performance Tuning
Azure SQL Performance Tuning is the process of optimizing the speed and efficiency of queries and database operations in Microsoft Azure SQL Database or SQL Managed Instance to reduce latency and improve throughput.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-300 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-300 exam.