Microsoft Certified: Azure Data Fundamentals Changed DP-900 Questions

Box 1: simple lookups

A key/value store associates each data value with a unique key. Most key/value stores only support simple query, insert, and delete operations. To modify a value (either partially or completely), an application must overwrite the existing data for the entire value. In most implementations, reading or writing a single value is an atomic operation.

An application can store arbitrary data as a set of values. Any schema information must be provided by the application. The key/value store simply retrieves or stores the value by key.

Answer below as:

Generally speaking, data analytics comes in four types:

Descriptive, to answer the question: What’s happening?

Diagnostic, to answer the question: Why’s happening?

Predictive, to answer the question: What will happen?

Prescriptive, to answer the question: What actions should we take?