Exam CAP topic 1 question 94 discussion

The IAM/CA then makes certification accreditation recommendations to the DAA, and the DAA issues one of four accreditation determinations: Approval to Operate (ATO) - Authorization of a DoD information system to process, store, or transmit information Interim Approval to Operate (IATO) - Temporary approval to operate based on an assessment of the implementation status of the assigned IA Controls Interim Approval to Test (IATT) - Temporary approval to conduct system testing based on an assessment of the implementation status of the assigned IA Controls Denial of Approval to Operate (DATO) - A determination that a DoD information system cannot operate because of an inadequate IA design or failure to implement assigned IA Controls