For a company expecting high user traffic, which database setup is ideal for handling multiple operations concurrently?

For a company expecting high user traffic, which database setup is ideal for handling multiple operations concurrently?

• A. Single-layer architecture
• B. Multi-layer architecture
• C. Sharded architecture
• D. Centralized architecture

Answer: (C)

A sharded architecture is ideal for a company expecting high user traffic because it effectively distributes data across multiple databases or servers, allowing for concurrent operations to be handled efficiently. This setup allows multiple database instances to operate independently while sharing the workload, thus improving performance and scalability. When user traffic increases, the system can accommodate more users by adding additional shards, which helps in reducing bottlenecks that could occur with a single database instance.

This architecture minimizes the risk of overloading any single server, as each shard can focus on a subset of the data, making it a robust option for applications that require high availability and responsiveness under heavy loads. Additionally, sharding allows for horizontal scaling, which is essential in managing the dynamic demands of user traffic effectively.

Other architectures, like single-layer, multi-layer, or centralized setups, may face limitations under high concurrency. A single-layer architecture lacks the ability to distribute load effectively, while a multi-layer architecture is more complex but does not inherently provide the same level of scalability as sharding. Centralized architecture can lead to performance degradation as all operations funnel through one point, making it less suitable for high-traffic scenarios.