Explanation:

Cloud Dataproc is a managed Apache Spark and Apache Hadoop service that lets you use open source data tools for batch processing, querying, streaming, and machine learning.

Key features:

• Managed service - Google handles cluster management, configuration, and maintenance
• Apache Spark - for fast, in-memory data processing and analytics
• Apache Hadoop - for distributed storage and processing
• Supports various data processing workloads including batch, querying, streaming, and ML
• The other options (Blaze, Fire, Ignite) are not the correct Apache projects that Dataproc manages