Exam AWS Certified Solutions Architect - Professional topic 1 question 206 discussion

D. It improves application performance by storing critical pieces of data in memory for low-latency access.

D. It improves application performance by storing critical pieces of data in memory for low-latency access. In-memory caching in ElastiCache improves application performance by storing frequently accessed or critical data in memory. This allows for low-latency access to the data, as accessing data from memory is much faster compared to fetching it from disk or a remote database. By keeping frequently accessed data in memory, applications can retrieve the data quickly, reducing the latency and improving overall response times. This is especially beneficial for read-heavy workloads, as it minimizes the need to access the underlying data storage systems, such as databases.

In-memory caching adds a high-speed data storage layer to complement the primary database which reduces load times and increases performance with low latency. option D is correct

In-memory caching improves application performance by storing critical pieces of data in memory for low-latency access.

Amazon ElastiCache improves the performance of web applications by allowing you to retrieve information from a fast, managed, in-memory system, instead of relying entirely on slower disk-based databases.

A is the answer, it cache most used data set and purge or delete expired one , there is no concept of critical or important data

Definitely D