Which of the following is OAT test item?
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maintainability
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Reliability
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It system
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All the above
C
Correct answer
Explanation
OAT (Operational Acceptance Testing) includes test items related to the IT system itself. Maintainability and Reliability are quality attributes but are not OAT test items - they are characteristics that would be evaluated through testing. 'IT system' refers to the system as a test item within the OAT framework. 'All the above' is incorrect because maintainability and reliability are attributes, not test items.