Crucial Exams

AWS Certified Data Engineer Associate DEA-C01 Practice Question

An ecommerce company stores 10 TB of click-stream data in an Amazon Redshift RA3 cluster. New records are appended hourly. Most queries filter on a recent date range and occasionally on user_id, then join to small dimension tables. The team wants the fastest scans with the least maintenance effort. Which table design best meets these requirements?

  • Define no sort key, enable automatic table optimization, and set DISTSTYLE ALL for the fact table.

  • Specify an interleaved sort key on event_date and user_id and schedule weekly deep VACUUM REINDEX operations.

  • Create the table with a compound sort key headed by event_date, keep DISTSTYLE AUTO, and run ANALYZE COMPRESSION to assign column encodings.

  • Use an interleaved sort key on user_id and event_date, and set DISTSTYLE KEY on user_id.

AWS Certified Data Engineer Associate DEA-C01
Data Store Management
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