Intermediate
Web & Software Development
Q66 / 100
What is the main advantage of the repository pattern in a layered application?
Correct! Well done.
Incorrect.
The correct answer is D) It abstracts data-access logic behind an interface, so business logic does not depend on a specific persistence technology and can be tested with an in-memory fake
D
Correct Answer
It abstracts data-access logic behind an interface, so business logic does not depend on a specific persistence technology and can be tested with an in-memory fake
Explanation
A repository (e.g., OrderRepository) exposes methods like find() and save() while hiding whether data comes from MySQL, MongoDB, or an API. Swapping the underlying store or substituting a fake for tests does not require touching business logic.
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66/100