SG0-001 · Question #41
Data on a storage system was last replicated at 8:00 AM and the storage system had a major failure at 9:33 AM. The failure caused all changes to the data between 8:00 AM and 9:33 AM to be lost. The da
The correct answer is C. Recovery Point Objective (RPO). The scenario describes a data loss event where changes made between the last replication and a system failure were lost, and this loss was deemed acceptable within a defined time frame.
Question
Data on a storage system was last replicated at 8:00 AM and the storage system had a major failure at 9:33 AM. The failure caused all changes to the data between 8:00 AM and 9:33 AM to be lost. The data loss was deemed acceptable based on the 2 hour:
Options
- AMean Time to Data Loss (MTDL)
- BMean Time Between Failures (MTBF)
- CRecovery Point Objective (RPO)
- DRecovery Time Objective (RTO)
How the community answered
(42 responses)- A2% (1)
- B2% (1)
- C95% (40)
Why each option
The scenario describes a data loss event where changes made between the last replication and a system failure were lost, and this loss was deemed acceptable within a defined time frame.
Mean Time to Data Loss (MTDL) is not a standard industry term or metric used to define acceptable data loss.
Mean Time Between Failures (MTBF) measures the average time expected between system failures, not the acceptable amount of data loss.
Recovery Point Objective (RPO) defines the maximum acceptable amount of data loss, measured in time, from the point of failure back to the last good data copy. In this case, the acceptable data loss window of 1 hour and 33 minutes (8:00 AM to 9:33 AM) aligns with a 2-hour RPO, meaning the organization accepts losing up to two hours of data.
Recovery Time Objective (RTO) defines the maximum acceptable downtime or the time it takes to restore business operations after a disaster, not the amount of data lost.
Concept tested: Recovery Point Objective (RPO)
Source: https://learn.microsoft.com/en-us/azure/architecture/resiliency/recovery-objectives
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