AWS Certified Data Analytics Specialty 2021 – Hands-On - ElastiCache Overview

The video tutorial introduces Elastic Cache, a managed caching technology in AWS, similar to RDS for databases. It covers two main technologies: Redis and Memcached. Redis is highlighted for its low latency and persistence, making it suitable for user sessions and distributed states. Memcached is noted for quick object retrieval but lacks persistence. The tutorial recommends Redis for most caching needs due to its overlapping features with Memcached. The video concludes with exam preparation tips and emphasizes the architectural aspects of Elastic Cache.

What is the significance of persistence in Redis caching?

Describe the use case for enabling multi-AZ with automated failure recovery.