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WorksheetsPrometheus and monitoring
Total questions: 16
Worksheet time: 5mins
What was Prometheus?
A Roman god
An Egyptian deity
A Greek titan
A bad movie
How does Prometheus cope with Grafana?
Grafana can query Prometheus directly
You need a proxy in between to transform data
Grafana just can't query Prometheus in any way
Which components are usually used together?
Prometheus + Clickhouse
Prometheus + Grafana + Elasticsearch
Prometheus + Alertmanager + Grafana
Prometheus + Grafana + WinRar
Prometheus uses push or pull mechanisms to get its data?
Push: data is sent to Prometheus
Pull: Prometheus fetches data
Both
What component allows Prometheus to get data from ephemeral jobs?
Alertmanager
No extra component
PushGateway
Prometheus federation
What observability pattern does Prometheus follow?
Metrics / measurement
Event
Both
How are the components that expose metrics to Prometheus called?
Publishers
Exporters
Ephemeral jobs
Subscribers
What are the 4 metric types Prometheus support?
Counter, Gauge, Summary and Total
Total, Counter, Gauge and Histogram
Histogram, Cumulative histogram, Gauge and Summary
Counter, Gauge, Histogram and Summary
Histograms are named after which words?
Histós (en. bucket, es. cubo) + Gramma (drawing)
Histio (k8s component) + Gramma (drawing)
Histós (en. mast, es. mástil) + Gramma (drawing)
[Evar]Histo (mathematician that coined it) + Gramma (drawing)
What is the name of the language to query data in Prometheus?
PromLite
PromSQL
PromQL
PrometheusLite
What can counter metrics do?
Arbitrarily go up or down
Only increase value or reset to zero
Measure frequency in buckets
Arbitrarily go up or down and reset to zero
Which metric type is considered as deprecated?
Counter
Summary
Gauge
Histogram
What is the mechanism that allows a component to discover services?
Service mesh
Service reflection
Service HA
Service discovery
When defining a metric, what should you include as suffix?
milliseconds
measurement unit
label name
low cardinality value
How do you calculate the cardinality of a metric?
sum of all metric value points in time
total amount of labels
average amount of values per second
unique combination of labels key=value
What is the answer to the Ultimate Question of Life, the Universe, and Everything?
452
46
42
13
