A Company Has Deployed a Multiplayer Game for Mobile Devices

question 399

Multiple Choice

A company has deployed a multiplayer game for mobile devices. The game requires live location tracking of players based on latitude and longitude. The data store for the game must support rapid updates and retrieval of locations. The game uses an Amazon RDS for PostgreSQL DB instance with read replicas to store the location data. During peak usage periods, the database is unable to maintain the performance that is needed for reading and writing updates. The game's user base is increasing rapidly. What should a solutions architect do to improve the performance of the data tier?

• A) Take a snapshot of the existing DB instance. Restore the snapshot with Multi-AZ enabled.
• B) Migrate from Amazon RDS to Amazon Elasticsearch Service (Amazon ES) with Kibana.
• C) Deploy Amazon DynamoDB Accelerator (DAX) in front of the existing DB instance. Modify the game to use DAX.
• D) Deploy an Amazon ElastiCache for Redis cluster in front of the existing DB instance. Modify the game to use Redis.

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Definitions:

Deliberate Attitudes

Beliefs and feelings that are consciously held and formed through reflection and reasoning.

Dissonance

A mental struggle arising from holding conflicting attitudes and beliefs at the same time.

Hypocritical Behavior

Actions that contradict stated beliefs, values, or principles, typically involving a pretense of having virtues or moral beliefs that one does not actually possess.

Discomfort

A mild state of physical or psychological unease or distress.