PCA course and practice questions

Metrics, logs, traces, pull versus push, how targets are found, and the difference between an SLI, an SLO and an SLA. Domain: Observability Concepts.

1. lessonWhat metrics are for8 min
2. lessonLogs and events8 min
3. lessonTraces and spans8 min
4. lessonPush and pull8 min
5. lessonService discovery8 min
6. lessonSLOs, SLAs, and SLIs8 min

The pieces of a Prometheus deployment, how a scrape is configured, what Prometheus will not do, and how series and the text format work. Domain: Prometheus Fundamentals.

1. lessonPrometheus architecture9 min
2. lessonConfiguration and scraping9 min
3. lessonWhat Prometheus will not do8 min
4. lessonThe data model and labels9 min
5. lessonExposition format8 min

Selectors, rates, aggregations over time and across labels, binary operators, histogram quantiles, and timestamps. Domain: PromQL.

1. lessonSelecting series9 min
2. lessonRates and derivatives9 min
3. lessonAggregating over time8 min
4. lessonAggregating over dimensions9 min
5. lessonBinary operators9 min
6. lessonHistograms and quantiles9 min
7. lessonTimestamp metrics8 min

Client libraries, what to measure inside a service, the exporters that speak for everything else, and how to name a metric. Domain: Instrumentation and Exporters.

1. lessonClient libraries8 min
2. lessonWhat to instrument8 min
3. lessonExporters9 min
4. lessonNaming metrics8 min

What a dashboard is for, how alerting rules are written, how Alertmanager routes them, and when a page is justified. Domain: Alerting & Dashboarding.

1. lessonDashboard basics8 min
2. lessonAlerting rules9 min
3. lessonAlertmanager9 min
4. lessonWhen, what, and why to alert9 min