What is IBM Cloud Object Storage (COS) used for in a watsonx.data deployment?
Select an answer to reveal the explanation.
Short Explanation
IBM Cloud Object Storage is the default storage backend for watsonx.data on IBM Cloud; data files (Parquet; Iceberg) are stored in COS buckets and accessed by Presto and Spark query engines.
Full Explanation
IBM Cloud Object Storage is the default storage backend for watsonx.data on IBM Cloud; data files (Parquet; Iceberg) are stored in COS buckets and accessed by Presto and Spark query engines. The incorrect options ("Running the Presto query coordinator process", "Providing in-memory caching for frequently accessed query results", "Storing IAM role definitions and access control policies") are distractors that don't fully capture the concept described.