DP-300 Configure and manage automation of tasks Practice Question
You are automating the creation of an Azure SQL database. You need to ensure that the deployment is idempotent using Azure Resource Manager (ARM) templates. Which deployment mode should you use?
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
✓
Incremental
'Incremental' mode processes the template as an incremental update to the resource group, making it idempotent. Only resources specified in the template are added or modified; existing resources not in the template are left unchanged. 'Complete' mode deletes resources not in the template, which is not idempotent. 'Validate' mode only validates without deploying, and 'Automatic' is not a valid ARM deployment mode.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Complete
Why it's wrong here
Complete mode deletes resources not specified in the template, which is not idempotent.
- ✗
Automatic
Why it's wrong here
Automatic is not a valid deployment mode in ARM.
- ✓
Incremental
Why this is correct
Incremental mode updates resources in the resource group based on the template, making it idempotent.
- ✗
Validate
Why it's wrong here
Validate mode only checks the template without deploying anything.
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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