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Scrum PSD Exam - Topic 1 Question 90 Discussion

Actual exam question for Scrum's PSD exam

Question #: 90
Topic #: 1

[All PSD Questions]

What are two reasons to use mock objects in unit tests?

AThe behavior of a given object can be emulated to the system under test

BThey are machine-generated and eliminate the need to write code by hand

CTo increase tight coupling

DTDD is impossible without them

EIsolating a particular system component for controlled testing

Show Suggested Answer

Suggested Answer: A, E

Mock objects are simulating the behavior of dependencies such as persistance layers or APIs. By mocking these you can be sure about what you are testing, and not accidentally testing the external dependency.

by Leontine at May 17, 2026, 11:13 AM

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Alline

I think using mock objects helps isolate components, like option E mentions. It makes testing more controlled, right?

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Arleen

5 days ago

I definitely recall that mock objects help with isolation, so E seems solid, but I’m unsure about A.

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Yvette

10 days ago

I feel like B is misleading; mock objects are usually created manually, right?

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Paulina

15 days ago

I remember practicing a question like this, and I think isolating components is really important for effective testing.

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Tamesha

2 months ago

I think A and E are the right answers, but I'm not completely sure about the wording.

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