WGU - D427 - Data Management - Applications – PreAssessment Questions and Answers Already Passed
4 views 0 purchase
Module
WGU - D427 - Data Management - Applications
Institution
WGU - D427 - Data Management - Applications
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
...
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
4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BrilliantScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.75. You're not tied to anything after your purchase.
