WGU C175 - Chapter 2: Data Modeling Questions and Answers with Verified Solutions

3 Vs (3 basic characteristics of Big Data databases) Volume, velocity, and variety Abstract Data Type (ADT) Data type that describes a set of similar objects with shared and encapsulated data representation and methods. An abstract data type is generally used to describe complex objects American National Standards Institute (ANSI) The group that accepted the DBTG recommendation and augmented database standards in 1975 through its SPARC committee Application Programming Interface (API) Software through which programmers interact with middleware. An API allows the use of generic SQL code, thereby allowing client processes to be database server-independent Attribute A characteristic of an entity or object. An attribute has a name and a data type Balancing Ensuring that the processing load is distributed evenly among multiple servers Big Data A movement to find new and better ways to manage large amounts of webgenerated data and derive business insight from it, while simultaneously providing high performance and scalability at a reasonable costClass A collection of similar objects with shared structure (attributes) and behavior (methods). A class encapsulates an object's data representation and a method's implementation. Classes are organized in a class hierarchy