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CISM study material · question 883 of 1000

What became of the term maximum allowable outage used in an earlier NIST contingency guide?

  1. It was narrowed so that it now applies only to a relocation of the whole of the service to a separate alternate site
  2. It was replaced entirely by recovery point objective
  3. It was split into maximum tolerable downtime for the process and recovery time objective for the system
  4. It was retained as a straightforward synonym for maximum tolerable downtime throughout all of the newer guidance issued
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Answer: C. It was split into maximum tolerable downtime for the process and recovery time objective for the system

SP 800-34r1's footnote records that the previous version of the guide used maximum allowable outage, and that the concept was separated into maximum tolerable downtime for the business process and recovery time objective for the system resource.

Source: NIST SP 800-34 Rev. 1 (NIST) — Sec. 3.2.1 footnote 18

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