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400-007 · Question #341

Which two factors must be considered while calculating the RTO? (Choose two.)

The correct answer is A. importance and priority of individual systems B. steps needed to mitigate or recover from a disaster. RTO (Recovery Time Objective) is calculated by identifying which systems are most critical to the business and mapping out the exact steps required to restore them after a disruption.

Gathering and Clarifying Requirements

Question

Which two factors must be considered while calculating the RTO? (Choose two.)

Options

  • Aimportance and priority of individual systems
  • Bsteps needed to mitigate or recover from a disaster
  • Ccost of lost data and operations
  • Dhow often backups are taken and how quickly these can be restored
  • Emaximum tolerable amount of data loss that the organization can sustain

How the community answered

(68 responses)
  • A
    87% (59)
  • C
    7% (5)
  • D
    3% (2)
  • E
    3% (2)

Why each option

RTO (Recovery Time Objective) is calculated by identifying which systems are most critical to the business and mapping out the exact steps required to restore them after a disruption.

Aimportance and priority of individual systemsCorrect

The importance and priority of individual systems must be established before RTO values can be assigned, because higher-priority systems receive shorter recovery time targets and drive the sequencing of restoration efforts.

Bsteps needed to mitigate or recover from a disasterCorrect

The steps required to mitigate or recover from a disaster directly determine how long recovery will take, making procedural complexity a core input to any accurate RTO estimate.

Ccost of lost data and operations

Cost of lost data and operations is an input to Business Impact Analysis used to justify DR investment levels, not a direct calculation factor for the RTO time-target itself.

Dhow often backups are taken and how quickly these can be restored

Backup frequency and restore speed are the primary factors used to calculate RPO (Recovery Point Objective), which measures acceptable data loss rather than acceptable downtime.

Emaximum tolerable amount of data loss that the organization can sustain

Maximum tolerable data loss is the textbook definition of RPO, a separate and distinct disaster recovery metric from RTO.

Concept tested: Recovery Time Objective calculation factors

Source: https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-34r1.pdf

Topics

#RTO#disaster recovery#business continuity#system prioritization

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