Designing Microsoft Azure Infrastructure Solutions (AZ-305) 2026 – 400 Free Practice Questions to Pass the Exam

The recommendation to deploy an Azure Cosmos DB that uses multi-region writes to each availability zone containing an instance of App1 is sound due to several factors. Azure Cosmos DB is designed for high availability and global distribution, making it optimal for applications that require low latency access to data across different regions.

By utilizing multi-region writes, Cosmos DB allows for data to be written to multiple regions simultaneously. This capability is crucial for maintaining data consistency and availability, especially during regional outages or failures. As App1 is deployed across multiple availability zones, having a database that can handle writes from multiple locations ensures that the application remains operational under various failure scenarios.

This approach not only enhances performance by allowing local data writes in each region, reducing latency but also improves disaster recovery capabilities, as the data is distributed and accessible even if one zone experiences issues. Thus, recommending Azure Cosmos DB with multi-region writes aligns perfectly with the goal of ensuring high availability and resilience for App1 across different availability zones.