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CISM study material · question 922 of 1000

Which systems must have a strategy for operating at an alternate facility for an extended period, under NIST guidance?

  1. Moderate- and high-impact systems; for low-impact systems it is optional
  2. Only those systems that support the mission essential functions of the organisation
  3. All of the systems in the whole estate regardless of their own assigned impact level
  4. High-impact systems only
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Answer: A. Moderate- and high-impact systems; for low-impact systems it is optional

SP 800-34r1 requires a plan for extended operation at an alternate facility where a system is moderate or high impact, and leaves it as a choice for low-impact systems.

Source: NIST SP 800-34 Rev. 1 (NIST) — Sec. 3.4.3 Alternate Sites

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