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Difficulty: EasyAWS Database Services

A gaming company is developing a new online multiplayer game. The system architecture requires two specific capabilities: an in-memory caching layer to store active player session states with sub-millisecond response times, and a fully managed relational database to handle structured player account transaction records.

Which AWS services should the company select to meet these requirements? (Select TWO.)

  1. Amazon ElastiCacheAnswer
  2. Amazon Relational Database Service (Amazon RDS)Answer
  3. C
    Amazon DynamoDB
  4. D
    Amazon Redshift
  5. E
    Amazon Simple Storage Service (Amazon S3)

Answer

Amazon ElastiCache and Amazon Relational Database Service (Amazon RDS)
Amazon ElastiCache is the correct selection for the caching layer because it provides a fully managed, in-memory data store with sub-millisecond response times. Amazon Relational Database Service (Amazon RDS) is the correct selection for the transaction database because it is a managed relational database service capable of structured player transaction records with full transactional support.

Step-by-Step Solution

1
Identify the caching requirement.
The requirement is an in-memory caching layer with sub-millisecond latency for session state storage, which points to Amazon ElastiCache.
Amazon ElastiCache stores data in-memory (using Redis or Memcached) to achieve sub-millisecond performance.
2
Identify the relational database requirement.
The requirement is a fully managed relational database to handle structured transactional data, which points to Amazon RDS.
Amazon RDS is a managed service for relational databases (such as PostgreSQL, MySQL, SQL Server) that provides relational capabilities and ACID compliance.

Key Concept

Selecting appropriate AWS database, caching, and storage services based on access speed and structured data requirements.
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Topics

AWS Database Services

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