AWS (Amazon Web Services) Certification Practice Exam

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What is a key benefit of Amazon Elasticache?

  1. It automatically scales storage capacity for data lakes

  2. It provides a front line cache for database response

  3. It manages stream processing for real-time analytics

  4. It ensures high availability of file storage

The correct answer is: It provides a front line cache for database response

A key benefit of Amazon ElastiCache is that it provides a front line cache for database responses. This caching service is designed to improve the performance of applications by reducing the latency and overhead associated with retrieving data directly from a database. By storing frequently accessed data in memory, ElastiCache allows applications to retrieve this data much faster, enhancing the speed with which database responses can be served to users. Additionally, this caching layer can significantly offload the database, allowing it to handle more requests and operate more efficiently. This makes it particularly useful for applications with high read traffic and where response time is critical. While other services and products may address scaling, analytics, or file storage, ElastiCache’s primary role is focused on caching capabilities.