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WGU Data-Management-Foundations Exam Syllabus Topics:

Topic	Details
Topic 1	Data wrangling: This section of the exam measures skills of Data Analysts and involves preparing, cleaning, and transforming data into suitable formats for analysis. The focus is on resolving data inconsistencies, handling missing values, and reformatting data to maintain accuracy for analysis tasks.
Topic 2	Data management: This section of the exam measures skills of Data Managers and covers core concepts of data modeling, database architecture, and the implementation of relational database systems. Learners study database design fundamentals and are evaluated on their ability to organize, store, and retrieve data efficiently.
Topic 3	Visualization: This part of the exam measures skills of Business Intelligence Analysts and covers the representation of information using charts, graphs, and dashboards. Candidates demonstrate the ability to effectively communicate findings and trends to a broad audience through visual displays.
Topic 4	Statistical analysis: This section of the exam measures skills of Data Scientists and emphasizes the use of statistical techniques to interpret and summarize data. Candidates are assessed on applying descriptive and inferential statistics to draw valid conclusions from datasets.
Topic 5	Leadership and management: This section of the exam measures skills of Project Managers and explores leadership roles in managing data-driven projects and teams. Learners are introduced to the concepts of project planning, decision making, and stakeholder communication in the context of data management.

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WGU Data Management – Foundations Exam Sample Questions (Q58-Q63):

NEW QUESTION # 58
Which characteristic is true for non-relational databases?

A. They store data in tables, columns, and rows, similar to a spreadsheet.
B. They are optimized for big data.
C. They are ideal for databases that require an accurate record of transactions.
D. They support the SQL query language.

Answer: B

Explanation:
Non-relational databases(also calledNoSQL databases) are designed for handlingbig dataandunstructured dataefficiently. They are optimized forhorizontal scaling, making them ideal forlarge-scale distributed systems.
* Option A (Correct):Non-relational databases areoptimized for big data, handling massive volumes of data across distributed architectures.
* Option B (Incorrect):NoSQL databases donotuse SQL as their primary query language. They often use JSON-based queries (e.g., MongoDB).
* Option C (Incorrect):Transaction-heavy applications requireACID compliance, which relational databases (SQL) handle better than NoSQL databases.
* Option D (Incorrect):NoSQL databases usedocument, key-value, graph, or column-family storage models, nottables, columns, and rowslike relational databases.

NEW QUESTION # 59
Which object relates an entity to itself in an entity-relationship model?

A. Reflexive relationship
B. Repository
C. Relationship instance
D. Attribute

Answer: A

Explanation:
Areflexive relationship(also called aunary relationship) occurs when anentity is related to itself.
Example Usage:
A screenshot of a computer AI-generated content may be incorrect.

CREATE TABLE Employees (
EmpID INT PRIMARY KEY,
Name VARCHAR(50),
ManagerID INT,
FOREIGN KEY (ManagerID) REFERENCES Employees(EmpID)
);
* ManagerIDrefers to another employeewithin the same table.
Why Other Options Are Incorrect:
* Option A (Repository) (Incorrect):A data storage structure, not a relationship type.
* Option B (Relationship instance) (Incorrect):Describesa specific connection between entities, not a reflexive relationship.
* Option D (Attribute) (Incorrect):Attributes storecharacteristics, butdo not define relationships.
Thus, the correct answer isReflexive relationship, as it relates an entity to itself.

NEW QUESTION # 60
Which keyword can be used as a clause in an ALTER TABLE statement?

A. STOP
B. AGGREGATE
C. DELETE
D. CHANGE

Answer: D

Explanation:
TheALTER TABLEstatement is used to modify an existing database table structure. One common clause is CHANGE, which allows renaming a column and modifying its data type.
Example:
sql
ALTER TABLE Employees CHANGE COLUMN OldName NewName VARCHAR(50);
* Option A (Incorrect):DELETE is used to removerows, not alter table structure.
* Option B (Correct):CHANGE is avalid clausefor renaming and modifying columns in MySQL and some other databases.
* Option C (Incorrect):STOP is not a valid SQL keyword for altering tables.
* Option D (Incorrect):AGGREGATE refers to functions like SUM() and AVG(), not table alterations.

NEW QUESTION # 61
Which keyword determines if a value is within a range of values?

A. OR
B. LIKE
C. BETWEEN
D. IN

Answer: C

Explanation:
TheBETWEENkeyword in SQL is used tofilter values within a specified range. It is particularly useful for numeric and date-based queries.
Syntax of BETWEEN:
sql
SELECT * FROM Employees WHERE Salary BETWEEN 50000 AND 100000;
* Retrievesall employees whose salary is between $50,000 and $100,000 (inclusive).
Why Other Options Are Incorrect:
* Option A (LIKE) (Incorrect):Used forpattern matchingwith wildcards (%, _). Example:
sql
SELECT * FROM Customers WHERE Name LIKE 'A%';
* Option B (IN) (Incorrect):Used tomatch a value in a specified set, butnot a range. Example:
sql
SELECT * FROM Employees WHERE Department IN ('HR', 'Finance', 'IT');
* Option C (OR) (Incorrect):Used forlogical conditions, but doesnot check a range. Example:
sql
SELECT * FROM Products WHERE Price < 10 OR Price > 50;
Thus, the correct choice is BETWEEN for filtering values within arange.

NEW QUESTION # 62
What is the first step of the analysis phase for designing a database?

A. Implement attributes
B. Determine cardinality
C. Identify entities
D. Draw an entity-relationship (ER) diagram

Answer: C

Explanation:
Thefirst stepin database analysis isidentifying entities, which are thereal-world objectsthat need to be represented in the database.
Example Usage:
* In a school system, the mainentitiescould be:
Students, Courses, Instructors
Why Other Options Are Incorrect:
* Option A (Determine cardinality) (Incorrect):Determining relationships comesafteridentifying entities.
* Option C (Draw an ER diagram) (Incorrect):ER diagramsvisualizeentities but arenot the first step.
* Option D (Implement attributes) (Incorrect):Attributes aredefined afterentities are identified.
Thus, the correct answer isIdentify entities, asentities form the foundation of the databasemodel.

NEW QUESTION # 63
......

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Latest Data-Management-Foundations Exam Discount & Exam Data-Management-Foundations Testking

WGU Data-Management-Foundations Exam Syllabus Topics:

100% Pass 2025 Data-Management-Foundations: Pass-Sure Latest WGU Data Management – Foundations Exam Exam Discount

WGU Data Management – Foundations Exam Sample Questions (Q58-Q63):