Data-Management-Foundations Reliable Exam Registration, New Data-Management-Foundations Exam Objectives

Dumpkiller aims to assist its clients in making them capable of passing the WGU Data-Management-Foundations certification exam with flying colors. It fulfills its mission by giving them an entirely free WGU Data Management – Foundations Exam (Data-Management-Foundations) demo of the dumps. Thus, this demonstration will enable them to scrutinize the quality of the WGU Data-Management-Foundations study material.

Dumpkiller is famous for its high-quality in this field especially for Data-Management-Foundations certification exams. It has been accepted by thousands of candidates who practice our Data-Management-Foundations study materials for their exam. In this major environment, people are facing more job pressure. So they want to get a Data-Management-Foundations Certification rise above the common herd. How to choose valid and efficient guide torrent should be the key topic most candidates may concern. And with our Data-Management-Foundations exam questions, you will pass the Data-Management-Foundations exam without question.

>> Data-Management-Foundations Reliable Exam Registration <<

New Data-Management-Foundations Exam Objectives | Data-Management-Foundations Detailed Study Plan

In order to let you have a general idea about our Data-Management-Foundations study engine, we have prepared the free demo in our website. The contents in our free demo are part of the real materials in our Data-Management-Foundations learning dumps. I strongly believe that you can feel the sincerity and honesty of our company, since we are confident enough to give our customers a chance to test our Data-Management-Foundations Preparation materials for free before making their decision. and you will find out the unique charm of our Data-Management-Foundations actual exam.

WGU Data Management – Foundations Exam Sample Questions (Q52-Q57):

NEW QUESTION # 52
Which keyword can be used to combine two results into one table?

• A. INTEGRATE
• B. CONSOLIDATE
• C. UNION
• D. MERGE

Answer: C

Explanation:
TheUNIONkeyword in SQL is used tocombine the resultsof two or more SELECT queries into asingle result setwhile removing duplicate rows.
Example:
sql
SELECT Name FROM Employees
UNION
SELECT Name FROM Managers;
* Option A (Correct):UNION combines results from multiple queries into one set,removing duplicates.
* Option B (Incorrect):MERGE is not a valid SQL keyword for combining result sets (it is used insome database systems for data merging).
* Option C (Incorrect):INTEGRATE is not a SQL keyword.
* Option D (Incorrect):CONSOLIDATE is not an SQL keyword.

NEW QUESTION # 53
Which property is associated with a one-field primary key?

• A. Simple
• B. Composite
• C. Numeric
• D. Duplicate

Answer: A

Explanation:
Aprimary keyuniquely identifies each row in a table. When a primary key consists ofonly one field, it is called aSimple Primary Key.
Types of Primary Keys:
* Simple Primary Key (Correct Answer):
* Contains onlyone column.
* Example:
sql
CREATE TABLE Students (
StudentID INT PRIMARY KEY,
Name VARCHAR(50)
);
* Composite Primary Key:
* Usesmultiple columnsto ensure uniqueness.
* Example:
sql
CREATE TABLE Orders (
OrderID INT,
ProductID INT,
PRIMARY KEY (OrderID, ProductID)
);
* Surrogate Primary Key:
* A system-generatedunique identifier(e.g., UUID or AUTO_INCREMENT).
Why Other Options Are Incorrect:
* Option B (Duplicate) (Incorrect):A primary keymust be unique, so itcannot be duplicate.
* Option C (Numeric) (Incorrect):While primary keyscan be numeric, they can also be alphanumeric (VARCHAR).
* Option D (Composite) (Incorrect):Acompositekey consists ofmultiple fields, whereas a simple key is a single field.
Thus, the correct answer isSimple, since aone-field primary keyis a simple primary key.

NEW QUESTION # 54
Which elements are represented by attributes in the database design documents?

• A. Synonyms
• B. Names
• C. Repositories
• D. Relationships

Answer: B

Explanation:
Attributesin a databaserepresent the properties (names, values, or characteristics) of an entity.
Example Usage:
* In aStudentstable, attributes might include:
StudentID (Primary Key), Name, Age, Major
* Here,Name is an attributedescribing the entityStudent.
Why Other Options Are Incorrect:
* Option A (Synonyms) (Incorrect):Synonyms in SQL allow different names for the same object but are not attributes.
* Option C (Repositories) (Incorrect):A repository stores data butdoes not define attributes.
* Option D (Relationships) (Incorrect):Relationships defineconnections between entities, not their attributes.
Thus, the correct answer isNames, asattributes define entity properties.

NEW QUESTION # 55
Which capability should databases maintain to simplify the use of SQL with a general-purpose language?

• A. The query processor to deliver results
• B. The storage manager to interpret low-level file-system commands
• C. The use of an application programming interface
• D. The ability to reverse results if needed

Answer: C

Explanation:
Databases need to supportApplication Programming Interfaces (APIs)to enable seamless integration with general-purpose programming languageslike Python, Java, and C#. APIs likeODBC (Open Database Connectivity) and JDBC (Java Database Connectivity)allow applications to interact with databases without requiring complex SQL commands.
* Option A (Incorrect):Thestorage manageris responsible for managing low-levelfile system operations, but it does not simplify SQL integration with programming languages.
* Option B (Incorrect):The ability toreverse results(e.g., using ORDER BY DESC) is a SQL feature but is unrelated to integration with programming languages.
* Option C (Incorrect):Thequery processoroptimizes and executes SQL queries but does not provide an interface for application development.
* Option D (Correct):APIsallow databases to be accessed easily from different programming environments, simplifying integration.

NEW QUESTION # 56
How many bytes of storage does a BIGINT data type hold in MySQL?

• A. 1 byte
• B. 4 bytes
• C. 3 bytes
• D. 8 bytes

Answer: D

Explanation:
In MySQL, theBIGINTdata type is a64-bit integerthat requires8 bytes (64 bits) of storage. It is used to store large numerical values beyond the range of INT (4 bytes).
* Option A (Incorrect):1 byte corresponds toTINYINT, which can store values from -128 to 127.
* Option B (Incorrect):3 bytes is not a standard integer storage size in MySQL.
* Option C (Incorrect):4 bytes corresponds toINT, which has a range of -2,147,483,648 to
2,147,483,647.
* Option D (Correct):BIGINT takes8 bytesand supports a massive range of numbers from -2