FREE Introduction To Data Engineering Questions and Answers

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What are database transactions' ACID properties?

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A PostgreSQL utility process that cleans up dead tuples in the background.

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Raw data from source systems is stored in an ELT data warehouse.

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What does ETL in a data pipeline mean?

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A secondary database that is used to offload analytics queries from the primary instance.

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Dividing a large table into smaller physical pieces to improve query performance, speed up bulk loads and data deletions, and cost-savings

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A _________ table in a Star Schema contains attributes that describe the events in a fact table. It provides answers to the event's who, what, where, when, and why questions.

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