A Company Released a Mobile Game That Quickly Grew to 10

question 69

Multiple Choice

A company released a mobile game that quickly grew to 10 million daily active users in North America. The game's backend is hosted on AWS and makes extensive use of an Amazon DynamoDB table that is configured with a TTL attribute. When an item is added or updated, its TTL is set to the current epoch time plus 600 seconds. The game logic relies on old data being purged so that it can calculate rewards points accurately. Occasionally, items are read from the table that are several hours past their TTL expiry. How should a database specialist fix this issue?

• A) Use a client library that supports the TTL functionality for DynamoDB.
• B) Include a query filter expression to ignore items with an expired TTL.
• C) Set the ConsistentRead parameter to true when querying the table.
• D) Create a local secondary index on the TTL attribute.

Recognize the role of risk-taking and preparedness in the innovation process.

Understand the significance of reaching and creating a new class of consumers through innovation.

Comprehend the concept of open innovation platforms and their significance in collaborative innovation efforts.

Understand the distinction between innovation and invention and their respective roles in the business context.

---

Definitions:

Long-Run Adjustments

Refers to changes that firms in an industry make in response to economic opportunities or constraints, involving adjustments in production capacity or resource utilization over time.

Marginal Revenue

The extra revenue obtained by selling an additional unit of a product or service.

Upsloping Line

A graphical representation indicating positive correlation between two variables; as one variable increases, so does the other.

Demand Curve

A graphical representation showing the relationship between the price of a good and the quantity demanded by consumers, usually downward sloping.