WGU D426 PRE-ASSESSMENT DATA
MANAGEMENT FOUNDATIONS (ACTUAL
EXAM) QUESTIONS WITH VERY
ELABORATED ANSWERS CORRECTRY WELL
ORGANIZED LATEST 2024 – 2025 ALREADY
GRADED A+
1.Which key describes the unique columns in a table that do not contain a
primary key?
Foreign key
Simple key
Candidate key
Composite key
Candidate key
2. Which index stores column values and row pointers in a hierarchy?
Dense index
,Sparse index
Multi-level index
Secondary index
Multi-level index
3. What characterizes the rules of relational databases?
-They are logical constraints that ensure the data is valid.
-They are based on business policy and specific databases.
-They represent data volumes and rapidly changing data structures.
-They embody the theoretical foundation of the SQL language.
They are logical constraints that ensure the data is valid.
4. Which event will result in an error code and error description when using
MySQL Server?
When the server or updates are incorrectly installed
When an SQL statement is entered to locate errors in the database
When an SQL statement is syntactically incorrect
When a Mac OS shortcut code is used on a Windows OS
When an SQL statement is syntactically incorrect
5. Which data type should be used to store whole integer values, such as age?
,NUM
VARCHAR
DATE
INT
INT
6. Which text-based interface is included in the MySQL Server Download?
MySQL Command-Line Client
MySQL Workbench
MySQL Enterprise
MySQL Community
MySQL Command-Line Client
7. Which database system includes the World database during its installation?
MySQL
MongoDB
Oracle
PostgreSQL
MySQL
, 8. What is the standardized language of relational database systems?
Contextual Query Language
Structured Query Language
Select Query Language
Object Query Language
Structured Query Language
9. Which SQL sublanguage is used to manage database access?
Data Definition Language (DDL)
Data Query Language (DQL)
Data Manipulation Language (DML)
Data Control Language (DCL)
Data Control Language (DCL)
10. Which SQL sublanguage is used to roll back database changes?
Data Transaction Language (DTL)
Data Manipulation Language (DML)
Data Query Language (DQL)
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 or Stuvia-credit 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 NurseLNJ. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
