Dama Exam CDMP-RMD Topic 2 Question 18 Discussion

Actual exam question for Dama's CDMP-RMD exam

Question #: 18
Topic #: 2

What characteristics does Reference data have that distinguish it from Master Data?

AIt is more volatile and needs to be highly structured

BIt is always data from an outside source such as a governing body

CIt always has foreign database keys to link it to other data

DIt is less volatile, less complex, and typically smaller than Master Data sets

EIt provides data for transactions

Show Suggested Answer

Suggested Answer: C

Reference data and master data are distinct in several key characteristics. Here's a detailed explanation:

Reference Data Characteristics:

Stability: Reference data is generally less volatile and changes less frequently compared to master data.

Complexity: It is less complex, often consisting of simple lists or codes (e.g., country codes, currency codes).

Size: Reference data sets are typically smaller in size than master data sets.

Master Data Characteristics:

Volatility: Master data can be more volatile, with frequent updates (e.g., customer addresses, product details).

Complexity: More complex structures and relationships, involving multiple attributes and entities.

Size: Larger in size due to the detailed information and numerous entities it encompasses.

Data Management Body of Knowledge (DMBOK), Chapter 7: Master Data Management

DAMA International, 'The DAMA Guide to the Data Management Body of Knowledge (DMBOK)'

by Janella at Oct 19, 2024, 08:22 PM

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27 days ago

D seems like the obvious choice here. Reference data is supposed to be less complex and smaller than master data, right?

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12 days ago

A) It is more volatile and needs to be highly structured

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