AI-102 · Question #147
What is a characteristic of a non-relational database?
The correct answer is C. self describing entities. A key characteristic of a non-relational database is its ability to handle self-describing entities.
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Options
- Afull support for Transact-SGL
- Ba fixed schema
- Cself describing entities
How the community answered
(22 responses)- B5% (1)
- C95% (21)
Why each option
A key characteristic of a non-relational database is its ability to handle self-describing entities.
Full support for Transact-SQL (T-SQL) is a characteristic of relational database management systems, not non-relational databases.
A fixed schema is a defining characteristic of relational databases, where data structure must be predefined, unlike the flexible nature of most non-relational databases.
Non-relational databases, often referred to as NoSQL databases, typically feature flexible or dynamic schemas. This means the data itself (e.g., in JSON documents or key-value pairs) inherently describes its structure, allowing for diverse data types and evolving data models without predefined rigid schemas.
Concept tested: Characteristics of non-relational databases
Source: https://learn.microsoft.com/en-us/azure/architecture/data-guide/big-data/non-relational-data
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