Performance Monitoring & Optimization Flashcards
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Read the first 7 Performance Monitoring & Optimization flashcards as text
Which metric is the best LEADING indicator of a data governance program's future success?
Answer: Percentage of critical data elements with an assigned data steward
Steward coverage of critical data elements predicts future governance outcomes, whereas revenue and fines are lagging results.
Which of the following is NOT one of the five commonly cited pillars of data observability?
Answer: Encryption
The five pillars are freshness, distribution, volume, schema, and lineage; encryption is a security control.
"Percentage of daily pipeline runs completed by 6:00 a.m." is best classified as which of the following?
Answer: A service level indicator (SLI)
An SLI is the actual measured metric that SLOs and SLAs are built on.
A data platform has an SLO of 99.5% availability over a 30-day month. Roughly how much downtime does the error budget allow?
Answer: 3.6 hours
720 hours multiplied by 0.5% equals 3.6 hours of allowable downtime.
Which investment most directly reduces Mean Time to Detect (MTTD) for data quality incidents?
Answer: Automated anomaly detection with alerting on key pipelines
Automated monitoring surfaces issues as they happen instead of waiting for periodic reviews or user complaints.
In a balanced scorecard for the data office, "data literacy training completion rate" belongs in which perspective?
Answer: Learning and growth
Building workforce skills and capabilities falls under the learning and growth perspective.
After data stewards are rewarded for the number of issues closed, they begin closing tickets without fixing root causes. This illustrates which concept?
Answer: Goodhart's law
Goodhart's law states that when a measure becomes a target, it ceases to be a good measure.
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