DP-900 Exam Dumps - Microsoft Certified: Azure Data Fundamentals Questions and Answers

Data visualization is a key component in being able to gain insight into your data. It helps make big and small data easier for humans to understand. It also makes it easier to detect patterns, trends, and outliers in groups of data.

Data visualization brings data to help you find key business insights quickly and effectively.

YES, NO, YES Normalizing decreases throughput for reading (need to make joins), but increases for writing (Less to write, since there are no duplicates)

Data Manipulation Language (DML) affect the information stored in the database. Use these statements to insert, update, and change the rows in the database.

BULK INSERT

DELETE

INSERT

SELECT

UPDATE

MERGE

https://docs.microsoft.co m/en-us/sql/relational-databases/security/auth entication-access/getting-started-w ith-database-engine-permissions?view=sql-server-ver15

A treemap chart divides the chart area into rectangles that represent the different levels and relative sizes of the data hierarchy.

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.