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Aporeon

Technical interview practice, from one developer to another.

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Observability & Production Incidents

Learning Loop

SLO alerts, dashboards, release correlation, mitigation choices, post-incident reviews, runbooks, and capacity signals.

7 drillsPractice one at a timeOrdered pathConcept questionComparison question

Recommended start

Alerts and SLOs

Explains alert design based on user-impact symptoms, SLOs, burn rate, thresholds, and avoiding noisy cause-only alerts.

Medium~7 minStep 1 of 7

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1Alerts and SLOsRecommended startExplains alert design based on user-impact symptoms, SLOs, burn rate, thresholds, and avoiding noisy cause-only alerts.Concept questionMedium~7 min.NETApplication InsightsASP.NET CorePractice 2API DashboardExplains dashboard panels that help an API owner see user impact, dependency health, releases, and current incidents.Concept questionEasy~5 min.NETApplication InsightsASP.NET CorePractice 3Release CorrelationExplains deployment markers, version telemetry, feature-flag state, commit traceability, and incident diagnosis after releases.Concept questionMedium~7 min.NETApplication InsightsASP.NET CorePractice 4Mitigation ChoiceCompares rollback, roll-forward, feature kill switches, scaling, and degraded mode as incident mitigations.Comparison questionMedium~7 min.NETApplication InsightsASP.NET CorePractice 5Post-Incident ReviewExplains post-incident review, root cause, contributing factors, action items, tests, alerts, runbooks, and ownership.Concept questionMedium~7 min.NETApplication InsightsASP.NET CorePractice 6RunbooksExplains what belongs in runbooks, how on-call handoff preserves context, and how operational docs stay useful.Concept questionEasy~5 min.NETApplication InsightsASP.NET CorePractice 7BackpressureExplains saturation signals and how systems shed, queue, throttle, or degrade before cascading failure.Concept questionHard~9 min.NETApplication InsightsASP.NET CorePractice

Practice order

7 drillsOne at a time

1Alerts and SLOsUp next / Medium / ~7 min
2API DashboardEasy / ~5 min
3Release CorrelationMedium / ~7 min
4Mitigation ChoiceMedium / ~7 min
5Post-Incident ReviewMedium / ~7 min
6RunbooksEasy / ~5 min
7BackpressureHard / ~9 min