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Exam CISA topic 1 question 543 discussion

Actual exam question from Isaca's CISA
Question #: 543
Topic #: 1
[All CISA Questions]

Which of the following would be the MOST significant factor when choosing among several backup system alternatives with different restoration speeds?

  • A. Mean time between failures (MTBFs)
  • B. Recovery point objective (RPO)
  • C. Recovery time objective (RTO)
  • D. Maximum tolerable outages (MTOs)
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Suggested Answer: C 🗳️
by Deeplaxmi at Oct. 3, 2022, 4:11 p.m.

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David_Hu
Highly Voted 2 years, 6 months ago
Selected Answer: C
should be C. restoration = RTO
upvoted 5 times
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PurpleParrot
Most Recent 11 months, 1 week ago
Selected Answer: D
The answer is Maximum Tolerable Outage. The time needed to restore a backup should not exceed MTO.
upvoted 1 times
PurpleParrot
11 months, 1 week ago
This is the reference Qs from ISACA To address an organization’s disaster recovery requirements, backup intervals should not exceed the: A.service level objective. B.recovery time objective (RTO). C.recovery point objective (RPO). D.maximum acceptable outage (MAO). The answer is D.
upvoted 1 times
PurpleParrot
11 months, 1 week ago
ISACA Justification: The maximum acceptable outage (MAO) is the maximum amount of system downtime that is tolerable. It can be used as a synonym for maximum tolerable period of disruption or maximum allowable downtime. However, the RTO denotes an objective/target, while the MAO constitutes a vital necessity for an organization’s survival.
upvoted 1 times
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Swallows
1 year, 1 month ago
Selected Answer: C
The restoration speed of a backup system directly influences the organization's ability to meet its RTO. A backup solution with faster restoration speeds can help minimize downtime and ensure that critical systems and data are recovered within the specified RTO. While the Recovery Point Objective (RPO) (option B) is also an important consideration in backup system selection, it primarily relates to the acceptable data loss tolerance in the event of a disruption, rather than the speed of system restoration.
upvoted 2 times
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hoho
2 years ago
Agree with C, Speed>RTO (Time)
upvoted 1 times
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csionis
2 years, 5 months ago
Selected Answer: C
The recovery time objective (RTO) specifies the maximum elapsed time to recover an application at an alternate site. The greater the RTO, the longer the process can take to be restored.
upvoted 4 times
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Deeplaxmi
2 years, 9 months ago
lowest RPO will ensure near to no data loss.. which is most rational approach.
upvoted 2 times
Deeplaxmi
2 years, 9 months ago
so B is correct
upvoted 1 times
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C (25%)
B (20%)
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