Which Azure service delivers a fully managed, globally distributed database with low-latency access in multiple regions? Learn how Azure Cosmos DB ensures high availability, real-time performance, and seamless scalability for global applications.
Table of Contents
Question
A business needs a fully managed, distributed database that provides low-latency access across multiple global regions. Which service should they use?
A. Azure SQL Database
B. Azure Cosmos DB
C. Azure Blob Storage
D. Azure Data Lake
E. Azure Synapse Analytics
Answer
B. Azure Cosmos DB
Explanation
Azure Cosmos DB is a globally distributed NoSQL database designed for low-latency, high-performance applications.
The best Azure service for a fully managed, distributed database that provides low-latency access across multiple global regions is Azure Cosmos DB.
- Global Distribution: Azure Cosmos DB is specifically designed as a globally distributed, multi-model database service. It allows you to replicate your data transparently to any Azure region, ensuring that users around the world can access data from the nearest data center, minimizing latency and improving application responsiveness.
- Low Latency and High Availability: Cosmos DB provides guaranteed low-latency reads and writes by allowing applications to interact with local replicas in their region. This architecture supports always-online applications and ensures high availability, even during regional outages.
- Multi-Region Writes: With multi-region writes enabled, Cosmos DB allows write operations in any configured region. This further reduces latency for global users and provides seamless failover capabilities in case of regional failures.
- Elastic Scalability: Cosmos DB supports elastic scalability of throughput and storage, letting you scale resources up or down as needed without downtime or complex reconfiguration.
- Consistency and Compliance: The service offers configurable consistency models, enabling you to balance between strong consistency and low-latency access. You can also choose specific regions for data residency to meet compliance and data sovereignty requirements.
- Enterprise Use Cases: Cosmos DB is ideal for global e-commerce, social applications, IoT telemetry, and any scenario requiring real-time, low-latency data access and high availability across continents.
Azure Cosmos DB is a fully managed, globally distributed database service that provides low-latency access and high availability across multiple Azure regions, supporting seamless scaling, multi-region writes, and compliance with data residency requirements.
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