Crucial Exams

GCP Professional Data Engineer Practice Question

During business hours, data analysts regularly hit BigQuery's 100-query interactive concurrency limit, and their queries fail with HTTP 429 errors indicating too many concurrent requests. A separate hourly ETL workflow launches several long-running SQL transformation jobs that worsen the congestion. You need to keep the analysts productive without purchasing additional slot capacity or reservations. What should you do?

  • Purchase a BigQuery reservation of 500 slots for the analysts and leave the ETL workload on on-demand capacity.

  • Migrate the ETL workload to a persistent Dataproc cluster and write its results back to BigQuery.

  • Apply a maximum bytes billed limit to each ETL query to reduce its resource usage and avoid concurrency errors.

  • Submit the ETL queries with batch priority so they queue until idle capacity is available and do not count toward the interactive concurrency limit.

GCP Professional Data Engineer
Maintaining and automating data workloads
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