WGU D278 Objective Assessment | 70 Questions and Answers | 2026 Update | 100% Correct.

WGU D278m




WGU D278 Objective Assessment | 70 Questions and Answers |
m m m m m m m m m




2026 Update | 100% Correct.
m m m m m




Gradegurus

,Question 1 m




Given float x = 10.2 and float y = 1.0. What is the value of the expression x / y?
m m m m m m m m m m m m m m m m m m m m m




A) 10
B) 0.0
C) 1.0
D) 10.2

Correct Answer: D m m




Rationale: Division of two floats preserves decimal precision. 10..0 = 10.2.
m m m m m m m m m m m m




Question 2 m




A function calculates the weight difference (Diff) given two sample weights (S1 and
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S2). What should be the output from the function?
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A) S2 only m




B) S1 only
m




C) Diff
D) S1 and S2m m




Correct Answer: C m m




Rationale: The functionʼs purpose is to return the calculated difference, not the inputs.
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Question 3 m




A function returns a number x cubed. What should be the input to the function?
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A) X, X, X
m m




B) 27
C) X
D) X, X m




Correct Answer: C m m




Rationale: The function needs only the number to be cubed as input.
m m m m m m m m m m m

, Question 4 m




Which text represents an algorithm?
m m m m




A) Insert key, turn key, open door.
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B) A box has balls, bats, and hats.
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C) The forecast for tomorrow is rain.
m m m m m




D) Cats and dogs have tails.
m m m m




Correct Answer: A m m




Rationale: An algorithm is a step-by-step procedure. Option A describes sequential
m m m m m m m m m m




m actions.




Question 5 m




Which phase of an agile approach would create an executable program?
m m m m m m m m m m




A) Implementation
B) Analysis
C) Design
D) Testing

Correct Answer: A m m




Rationale: Implementation is the coding phase where an executable program is
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m produced.




Question 6 m




A program uses the number of seconds in a minute in various calculations. How
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should the item that holds the number of seconds in a minute be declared?
m m m m m m m m m m m m m m




A) Constant integer secondsPerMinute m m




B) Constant float userTime m m




C) Variable integer secondsPerMinute
m m




D) Variable float userTime m m




Correct Answer: A m m




Rationale: Seconds per minute never changes, so it should be a constant integer.
m m m m m m m m m m m m