Which method shows you whether MongoDB uses any indexes when running a query, and how the indexes are used?

Which statement accurately describes global secondary indexes in DynamoDB?

Which command do you use to add a value to a Redis stream named mystream?

You need to create a scalable database that supports immutable writes. What do you use?

You need to create a data store for the catalog for your new ecommerce application. Your company is a startup, so the catalog schema may evolve. Which do you choose?

You need to select a NoSQL database for heavy aggregate query workloads. Which type do you choose?

Polyglot storage means using multiple types of what in the same application?

You need to change the shard key of an existing MongoDB collection. What do you do?

What does redis use to sort the elements of a sorted set?

What is recommended size for Redis keys?

You need to create a document database that supports database triggers. Which NoSQL database should you use?