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WGU D278 Study Guide 2026 – Practice Questions and Answer Review for Objective Assessment

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This document covers WGU course D278, including a structured study guide with practice questions and answer explanations aligned with the 2026 course content. It focuses on key IT and data management concepts such as database design, data analysis, information systems, security principles, and applied technical decision-making. The material is designed to support exam preparation by reinforcing core concepts and improving understanding through practice-based review. It serves as a comprehensive resource for students preparing for the WGU D278 objective assessment.

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WGU D278 EXAM 2026 WITH 100%
ACCURATE AND VERIFIED
ANSWERS GRADED A+
Which operator should be used to determine if a number is evenly divisible by 5?

A+

B-

C*

D % - answer-%



A car drove 200 miles using 10 gallons of fuel.



Which operation should be used to compute the miles per gallon, which is 20?

A Addition

B Subtraction

C Multiplication

D Division - answer-Division



A variable should hold a person's height in meters.



Which data type should the variable be?

A Integer

B Float

C String

D Boolean - answer-Float



A variable should hold the names of all past U.S. presidents.

,Which data type should the variable be?

A Integer array

B Float array

C String array

D Boolean array - answer-String Array



A program uses the number of seconds in a minute in various calculations.



How should the item that holds the number of seconds in a minute be declared?

A Constant float userTime

B Variable float userTime

C Constant integer secondsPerMinute

D Variable integer secondsPerMinute - answer-Constant Integer secondsPerMinute



A program determines if a user's age is high enough to run for U.S. president. The
minimum age requirement is 35.



How should the item that holds the minimum age be declared?

A Constant integer minAge

B Variable integer minAge

C Constant integer 35

D Variable integer 35 - answer-Constant integer minAge



Given integer x = 3 and integer y = 5.

What is the value of the expression ( x / 2.0) + y?

A 5.0

B 6.0

C 6.5

, 7 7.5 - answer-6.5



Given float x = 10.2 and float y = 1.0.



What is the value of the expression x / y ?

A 0.0

B 1.0

C 10

D 10.2 - answer-10.2



What kind of operator is the == in the expression i == 20?

A Assignment

B Arithmetic

C Equality

D Logical - answer-Equality



What is the purpose of parentheses () in a programming expression?

A To print expressions

B To group expressions

C To run expressions

D To compose expressions - answer-To group expressions



Given float x = 3.0.



Which expression evaluates to 2.0?

Ax/3*2+2

B x - 2/3

C x + 0.5 /2

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