Question 28
ObservabilityWhich of the following is not a key metric for Site Reliability Engineers?
Correct answer: D
Explanation
Site Reliability Engineers track metrics such as service level indicators (SLIs), service level objectives (SLOs), and error budgets to measure reliability and performance. A service level requirement (SLR) is a customer or business requirement, not a core SRE metric used to monitor system health.
Why each option is right or wrong
A. Service level agreement (SLA)
B. Service level indicator (SLI)
C. Service level objective (SLO)
D. Service level requirement (SLR)
Service level requirement (SLR) is a contractual or business-defined expectation, not one of the operational reliability measures SREs use to run a service. In SRE practice, the core monitoring framework is built around SLIs, SLOs, and error budgets; SLRs sit upstream as requirements that may inform those targets, but they are not themselves a tracked health metric.