AWS Certified Cloud Practitioner

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A company is building a web application that requires an in-memory data store for caching and session management. The data store must provide high availability and durability. Which AWS service or resource will meet these requirements?

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RRitesh

Explanation:

Explanation

Amazon MemoryDB is the correct choice because:

In-memory data store: MemoryDB is specifically designed as an in-memory database service
High availability: MemoryDB provides automatic failover and multi-AZ deployments
Durability: MemoryDB uses a distributed transactional log that persists data across multiple Availability Zones
Session management: Perfect for web application session storage with fast read/write performance

Why other options are incorrect:

Amazon Aurora: A relational database, not primarily an in-memory data store
Amazon ElastiCache (Memcached): In-memory but lacks built-in durability features
Amazon EBS volumes: Block storage, not an in-memory data store

MemoryDB combines the speed of in-memory performance with the durability of a database, making it ideal for caching and session management scenarios requiring both high performance and data persistence.

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