Question 426 of 919
DP-300 Plan and implement data platform resources Practice Question
You are designing a new Azure SQL Database for an e-commerce application. The database will contain sensitive customer data and must be isolated from other tenants. Which deployment option provides the highest level of resource isolation?
⚠ Common exam trap
The key trap is that candidates may assume a single database offers the highest isolation because it is not part of a pool, but they overlook that Managed Instance provides dedicated compute, memory, and network isolation with its own virtual network, making it more suitable for strict tenant isolation requirements.
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
✓
Managed Instance
Azure SQL Managed Instance provides the highest level of resource isolation among the listed options. It runs as an isolated instance with its own dedicated set of CPU, memory, and storage resources, and it is deployed into a dedicated virtual network, ensuring network isolation as well. This makes it ideal for scenarios requiring strict tenant separation, such as an e-commerce application handling sensitive customer data. In contrast, a single database in Azure SQL Database shares some underlying resources at the logical server level and does not offer the same degree of network isolation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Elastic pool
Why it's wrong here
Elastic pool is a shared resource model where databases share CPU, memory, and IO within the pool, providing the least isolation.
- ✗
Hyperscale
Why it's wrong here
Hyperscale is a scalable architecture but still operates within the shared model of Azure SQL Database, not providing dedicated resources per database.
- ✓
Managed Instance
Why this is correct
Correct. Managed Instance offers dedicated compute, storage, and network isolation, providing the highest level of resource isolation.
- ✗
Single database
Why it's wrong here
Single database provides isolation at the database level but shares underlying server resources and lacks dedicated network isolation, making it less isolated than Managed Instance.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 24, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.