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PCA · 2 days (14 h)
PCA Exam Preparation — Prometheus Certified Associate
Metrics, PromQL, and alerting: two days to speak fluent Prometheus and earn the associated certification.
Objectives
- Pass the PCA multiple-choice exam
- Write useful PromQL queries: rates, aggregations, percentiles
- Instrument a service with the right metric types
- Build alerts that wake you up for the right reasons
Audience
Ops, SREs, and developers who work — or will work — with Prometheus metrics daily.
Prerequisites
- Basics of Kubernetes or a containerized environment
- No Prometheus experience required
Program
Observability concepts
- Metrics, logs, traces: which does what
- SLIs, SLOs, and error budgets
Prometheus fundamentals
- Architecture: scrape, TSDB, service discovery
- Metric types: counter, gauge, histogram, summary
PromQL in practice
- Selectors, rate(), and aggregations
- Histograms and percentiles
- Classic pitfalls and anti-patterns
Instrumentation and exporters
- Client libraries and /metrics exposition
- Node exporter and ecosystem exporters
Alerting, dashboards, and mock exam
- Alertmanager: routing, silences, inhibitions
- Sober, readable Grafana dashboards
- Mock multiple-choice test with answer review
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Six questions, two minutes. Quote within 48 h — often within minutes.
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