DP-300 Plan and implement data platform resources Practice Question
Exhibit
Refer to the exhibit. ``` RESOURCE GROUP: rg-sql-prod LOCATION: eastus SERVER NAME: sqlprod-server DATABASE NAME: SalesDB SERVICE TIER: BusinessCritical COMPUTE: Gen5, 8 vCores STORAGE: 500 GB BACKUP STORAGE REDUNDANCY: Geo ZONE REDUNDANCY: Enabled ```
You are evaluating the configuration of an Azure SQL Database as shown in the exhibit. You need to ensure that the database remains available during a zonal failure without data loss. Which feature contributes to this requirement?
⚠ Common exam trap
Many candidates confuse zone redundancy (which protects within a region) with geo-redundancy (which protects across regions), or assume that any service tier with high availability features (like General Purpose) can guarantee zero data loss during a zonal failure, when only the Business Critical tier with zone redundancy provides synchronous replication and automatic failover without data loss.
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
✓
Zone redundancy enabled on Business Critical tier.
Zone redundancy on the Business Critical tier ensures that database replicas are placed in different availability zones within the same Azure region. During a zonal failure, the service automatically fails over to a synchronous replica in another zone, guaranteeing zero data loss because all transactions are synchronously committed across replicas. This directly meets the requirement of remaining available without data loss during a zonal outage.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
General Purpose service tier.
Why it's wrong here
General Purpose does not offer zone-redundant synchronous replication.
- ✗
Read scale-out.
Why it's wrong here
Read scale-out is for read workloads.
- ✗
Geo-redundant backup storage.
Why it's wrong here
Backup storage redundancy does not affect live database availability.
- ✓
Zone redundancy enabled on Business Critical tier.
Why this is correct
Zone redundancy provides synchronous replication across zones.
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.