What is Amazon MSK primarily used for?

Amazon Managed Streaming for Apache Kafka (MSK) is primarily used for performing real-time data processing with Apache Kafka. Kafka is a distributed event streaming platform capable of handling trillions of events a day, and MSK is a fully managed service that makes it easy to set up, operate, and scale Kafka in the cloud.

By utilizing MSK, developers and organizations can build real-time applications that require high throughput, low-latency data processing, and the ability to process streams of records in real time. This is particularly useful for scenarios like log aggregation, real-time analytics, and data integration, where businesses need to continuously ingest, process, and analyze streaming data.

The other options relate to different AWS services and functionalities that are not the primary focus of MSK. Building data lakes involves services like Amazon S3 and AWS Lake Formation. Generating text-to-speech audio and converting spoken language into text are functionalities typically associated with Amazon Polly and Amazon Transcribe, respectively. These services serve distinctly different purposes compared to Apache Kafka and MSK's focus on event streaming and real-time processing.