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Question 63 - DEA-C01 discussion

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In Which Data Modelling Technique, Data Engineer generally refer the terms Hubs & Satellites?

A.
Data Hub
Answers
A.
Data Hub
B.
Data Vault
Answers
B.
Data Vault
C.
Star Schema
Answers
C.
Star Schema
D.
Snowflake Schema
Answers
D.
Snowflake Schema
Suggested answer: B

Explanation:

In Data Vault modelling, Hubs are entities of interest to the business.

They contain just a distinct list of business keys and metadata about when each key was first loaded and from where.

In Data Vault modelling, Satellites connect to Hubs or Links. They are Point in Time: so we can ask and answer the question, "what did we know when?"

Satellites contain data about their parent Hub or Link and metadata about when the data was loaded, from where, and a business effectivity date.

asked 23/09/2024
Abheesh Vijayan
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