Crucial Exams

AWS Certified Data Engineer Associate DEA-C01 Practice Question

An online retailer migrates its clickstream analytics to Amazon Redshift. A 3-TB click_events fact table joins with three dimension tables, each under 20 000 rows. BI queries usually filter by event_time (timestamp) and customer_id. The team must minimize inter-node shuffling during joins and keep storage costs low. Which table configuration meets these requirements?

  • Define click_events with DISTSTYLE EVEN, dimension tables with DISTSTYLE KEY on customer_id, and set customer_id as the SORTKEY for all tables.

  • Define click_events with DISTSTYLE ALL, dimension tables with DISTSTYLE EVEN, and set event_time as the SORTKEY.

  • Define all tables with DISTSTYLE EVEN and no sort keys.

  • Define click_events with DISTSTYLE KEY on customer_id, define each dimension table with DISTSTYLE ALL, and set event_time as the SORTKEY on click_events.

AWS Certified Data Engineer Associate DEA-C01
Data Store Management
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