Cassandra Practice Test

What does a UDT (User Defined Type) allow you to define?

1. A complex data structure comprising multiple attributes

2. A simple integer or text datatype

3. A method for partitioning data

4. A way to enforce data consistency

The correct answer is: A complex data structure comprising multiple attributes

A User Defined Type (UDT) in Cassandra allows you to define a complex data structure that comprises multiple attributes. This feature is particularly useful for modeling entities that have a variety of related fields, as it enables the grouping of different data types under a single type. For instance, if you want to represent an address, you could create a UDT that includes attributes like street name, city, state, and zip code, combining various data types like text and integers in one cohesive structure. This promotes better organization of data and simplifies queries by allowing you to treat a set of related attributes as a single entity. While other options mention aspects of data management in Cassandra, they pertain to simpler data types, data partitioning strategies, or enforcing consistency, none of which encapsulate the broad and flexible nature of a UDT. Thus, UDTs shine in scenarios where there is a need to construct intricate data entities that reflect real-world relationships accurately.