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Zorluk: OrtaAligning Technical Service Level Objectives (SLAs/SLOs/SLIs) with Business Objectives

An enterprise travel platform hosted on Google Cloud experiences significant user churn during flash sales. While infrastructure monitoring reports 99.99% VM uptime, business stakeholders note that high latency during the payment validation step causes customers to abandon their bookings. The Site Reliability Engineering (SRE) team needs to realign operational monitoring to directly reflect business impact and prevent revenue loss. Which TWO actions should the SRE team take to align technical service levels with business objectives? (Select TWO)

  1. Define a latency Service Level Indicator (SLI) measured as the proportion of successful payment API requests completed in under 500 ms500\text{ ms} at the user-facing load balancer.Cevap
  2. B
    Define the Service Level Indicator (SLI) target as an availability goal of 99.9%99.9\% over a rolling 30-day window to set operational alerting thresholds.
  3. Establish a Service Level Objective (SLO) tied to an error budget policy that freezes non-urgent feature releases when payment latency breaches threaten checkout conversion rates.Cevap
  4. D
    Configure static CPU utilization alerts on backend Compute Engine instances to trigger PagerDuty notifications whenever CPU usage exceeds 85%85\% for 5 minutes.

Cevap

The team should define a user-facing latency SLI based on successful payment calls completed within 500 ms500\text{ ms} and establish an SLO tied to an error budget policy that governs feature deployment velocity based on checkout impact.
Defining a latency SLI at the user-facing load balancer accurately captures customer experience for payment validation. Tying that SLI to an SLO with an error budget policy ensures that when user experience degrades, engineering effort is redirected from new features to service reliability, directly mitigating business revenue loss.

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1
Identify the user-facing metric (SLI) that directly reflects business performance.
Selected the ratio of successful requests meeting the 500 ms500\text{ ms} latency threshold measured at the entry load balancer.
SLIs must quantify the actual performance experienced by users rather than internal system resource availability.
2
Align operational governance (SLO and Error Budget) with business outcomes.
Established an SLO error budget policy that halts non-critical feature releases when latency targets are breached.
Error budget policies enforce business alignment between reliability engineering and product feature development.

Anahtar Kavram

Aligning user-centric SLIs and error-budget-driven SLOs with business impact
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