CDP-3002 試験問題を無料オンラインアクセス

How does the Cloudera Data Engineering service integrate with cloud storage solutions like Amazon S3 or Azure Blob Storage?

• A.Requires custom scripting for each cloud storage provider.
• B.Utilizes built-in connectors for seamless access.
• C.Requires manual configuration for each storage bucket.
• D.Not directly supported, requires external tools.

You need to optimize the performance of a Spark query that involves joining data from multiple Hive tables. What strategies can you employ to improve efficiency?

• A.All of the above
• B.Use broadcast joins for small tables involved in the join operation
• C.Increase the number of Spark executors without any further optimization
• D.Pre-partition tables based on the join columns for faster data co-location

You're building a large and complex ETL pipeline with numerous tasks and dependencies. What are some best practices to ensure its maintainability and understandability?

• A.Implement extensive logging within each task to capture detailed execution information.
• B.All of the above
• C.Use clear and descriptive names for tasks, operators, variables, and DAG comments throughout the code.
• D.Break down the pipeline into smaller, modular sub-DAGs with well-defined functionalities.

In a PySpark application running on Kubernetes, if one of the Executors fails to execute a task due to a node failure, what action does the Spark Driver take?

• A.It requests Kubernetes to allocate more resources to the failed Executor.
• B.It pauses the application until the failed Executor is back online.
• C.It immediately shuts down the entire application.
• D.It reschedules the task on a different Executor.

In the context of Cloudera's Optimization Framework, what role does data statistics collection play?

• A.It is used to generate more data
• B.It reduces the need for data compression
• C.It helps the optimizer make informed decisions about data layout and query execution plans
• D.It provides metadata for security enforcement