Credit Acceptance Interview Questions and Answers

Design an Ad service for displaying advertisements to users based on their preferences and behavior.

• Implement a recommendation system to suggest relevant ads to users.

• Utilize user data such as browsing history, search queries, and demographic information to personalize ads.

• Allow users to opt out of personalized ads and provide transparency on data usage.

• Track ad performance metrics like click-through rates and conversi...read more

Sharding the database is based on factors like scalability, performance, and data distribution.

• Consider sharding when the database is growing rapidly and needs to handle increased load.

• Shard based on geographical location to reduce latency for users in different regions.

• Shard based on specific data types or access patterns to optimize performance.

• Consider sharding when the database becomes too large to efficiently hand...read more