DP-300 Plan and implement data platform resources Practice Question
You are deploying Azure SQL Database for a new application that requires predictable performance and minimal latency. You need to choose a service tier that provides dedicated resources and allows scaling independently for compute and storage. Which service tier should you select?
⚠ Common exam trap
It's easy for candidates to confuse 'dedicated resources' with 'General Purpose' because it also offers isolated compute, but they overlook that Business Critical uses local SSD for minimal latency, whereas General Purpose relies on remote storage with higher latency.
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
✓
Business Critical
The Business Critical service tier is designed for applications requiring predictable performance and minimal latency, as it provides dedicated resources (CPU and memory) and uses local SSD storage for the database. It also supports independent scaling of compute and storage, allowing you to adjust DTUs or vCores without affecting storage capacity, which aligns with the requirement for independent scaling.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Business Critical
Why this is correct
Business Critical provides dedicated resources and low latency, suitable for mission-critical applications.
- ✗
General Purpose
Why it's wrong here
General Purpose uses shared resources and is not optimized for low-latency.
- ✗
Basic
Why it's wrong here
Basic tier is for small workloads with shared resources and limited performance.
- ✗
Hyperscale
Why it's wrong here
Hyperscale is for very large databases with flexible storage, not necessarily for predictable low-latency.
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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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.