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WGU - D427 - Data Management - Applications – PreAssessment Questions and Answers Already Passed $11.99   Add to cart

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WGU - D427 - Data Management - Applications – PreAssessment Questions and Answers Already Passed

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WGU - D427 - Data Management - Applications – PreAssessment Questions and Answers Already Passed What is the primary purpose of a database management system (DBMS)? a. To increase data redundancy b. To provide a framework for data manipulation c. To manage and organize data efficiently ...

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  • September 29, 2024
  • 59
  • 2024/2025
  • Exam (elaborations)
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  • WGU - D427 - Data Management - Applications
  • WGU - D427 - Data Management - Applications
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WGU - D427 - Data Management -
Applications – PreAssessment
Questions and Answers Already Passed
What is the primary purpose of a database management system (DBMS)?

a. To increase data redundancy

b. To provide a framework for data manipulation


✔✔c. To manage and organize data efficiently


d. To eliminate the need for data security




Which of the following is an example of a relational database?


✔✔a. MySQL


b. Google Sheets

c. Microsoft Word

d. Adobe Photoshop




What does SQL stand for in the context of databases?

a. Structured Question Language


✔✔b. Structured Query Language


1

,c. Simple Query Language

d. Standard Query Language




What is a primary key in a database table?

a. A key used for encryption


✔✔b. A unique identifier for a record


c. A key that allows multiple entries

d. A type of data backup




Which of the following best describes normalization in databases?

a. The process of duplicating data

b. The method of securing data


✔✔c. The process of organizing data to reduce redundancy


d. The technique for data visualization




What is the purpose of a foreign key in a relational database?

a. To increase data security


✔✔b. To establish a link between two tables


2

,c. To define the primary key

d. To restrict user access




Which SQL command is used to retrieve data from a database?


✔✔a. SELECT


b. GET

c. FETCH

d. RETRIEVE




What does the term "data integrity" refer to?

a. The size of the data

b. The speed of data processing


✔✔c. The accuracy and consistency of data


d. The amount of data storage




What is an example of unstructured data?

a. A customer database


✔✔b. An email message


3

, c. A sales report

d. A spreadsheet




What is the primary function of data warehousing?


✔✔a. To consolidate and store large amounts of data for analysis


b. To create real-time data reports

c. To secure sensitive information

d. To manage user access to data




Which of the following describes a data lake?

a. A type of database for small datasets

b. A structured storage system


✔✔c. A centralized repository for storing raw data


d. A method for data normalization




What is the purpose of data mining?


✔✔a. To discover patterns and relationships in large datasets


b. To secure sensitive information


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