A Company Is Releasing a New Mobile Game Featuring a Team

question 31

Multiple Choice

A company is releasing a new mobile game featuring a team play mode. As a group of mobile device users play together, an item containing their statuses is updated in an Amazon DynamoDB table. Periodically, the other users' devices read the latest statuses of their teammates from the table using the BatchGetltemn operation. Prior to launch, some testers submitted bug reports claiming that the status data they were seeing in the game was not up-to-date. The developers are unable to replicate this issue and have asked a database specialist for a recommendation. Which recommendation would resolve this issue?

• A) Ensure the DynamoDB table is configured to be always consistent.
• B) Ensure the BatchGetltem operation is called with the ConsistentRead parameter set to false.
• C) Enable a stream on the DynamoDB table and subscribe each device to the stream to ensure all devices receive up-to-date status information.
• D) Ensure the BatchGetltem operation is called with the ConsistentRead parameter set to true.

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Definitions:

Fertility Rate

The typical amount of offspring a female member of a population gives birth to during her life.

Developed Countries

Nations with advanced technological infrastructure, high standards of living, and comprehensive systems for healthcare, education, and economic activity.

Human Population

Refers to the number of humans living in a specific area or globally, including its growth, density, and distribution.

Death Rates

The ratio of total number of deaths to the total population in a specified community or area over a particular period of time, often expressed per 1000 individuals.