This is the part of the change management process where the change is tested by the actual users to verify that it works for the user.
Correct Incorrect Unanswered
Answer Description
End-user acceptance is the phase in the change management process where the end-user tests the system after the change is completed and ensures that it doesn’t hinder everyday operations.
Wikipedia
In engineering and its various subdisciplines, acceptance testing is a test conducted to determine if the requirements of a specification or contract are met. It may involve chemical tests, physical tests, or performance tests.In systems engineering, it may involve black-box testing performed on a system (for example: a piece of software, lots of manufactured mechanical parts, or batches of chemical products) prior to its delivery.In software testing, the ISTQB defines acceptance testing as: Formal testing with respect to user needs, requirements, and business processes conducted to determine whether a system satisfies the acceptance criteria and to enable the user, customers or other authorized entity to determine whether to accept the system.Some forms of acceptance testing are, user acceptance testing (UAT), end-user testing, operational acceptance testing (OAT), acceptance test-driven development (ATDD) and field (acceptance) testing. Acceptance criteria are the criteria that a system or component must satisfy in order to be accepted by a user, customer, or other authorized entity.
Acceptance_testing#User_acceptance_testing - Wikipedia, the free encyclopedia 
CompTIA A+
CompTIA Network+
CompTIA Security+
CompTIA CySA+
CompTIA Linux+
CompTIA PenTest+
CompTIA Cloud+
CompTIA ITF+
AWS Cloud Practitioner
Microsoft Azure Fundamentals