Prometheus Fundamentals

You are deploying Prometheus in a Kubernetes cluster and need to ensure it discovers pods labeled 'app=frontend'. Which configuration block is required?

Which label is used to group alerts in Alertmanager?

If you have a scrape_interval of 15s, what is the recommended minimum scrape_timeout?

Which THREE conditions cause a scrape to be unsuccessful?

Which THREE features are provided by the Prometheus HTTP API?

Which TWO of the following are valid ways to configure target discovery in Prometheus?

Which component is best suited for long-term storage?

Which THREE of the following metrics are automatically added to all scraped targets?

Which mechanism allows Prometheus to discover targets by reading a list from a file?

What is the purpose of the 'rule_files' configuration?

What is the primary language used to query Prometheus data?

What is the default port that Prometheus listens on?

Which TWO of the following labels are specifically associated with Histograms?

You want to rename a metric during the scrape process. Which configuration block is appropriate?

What label is automatically added by Prometheus to all scraped metrics?

Which component is responsible for receiving alerts from Prometheus and managing notification delivery?

When a Prometheus server is restarted, how does it recover the in-memory data?

What is the benefit of using recording rules?

Your Prometheus server is hitting high memory usage due to high cardinality. Which action is most effective at reducing memory pressure?

What is the purpose of 'tombstones' in the TSDB?

Which THREE of the following are common sources of high cardinality?

Which TWO of the following can be modified in 'relabel_configs'?

What is the default value for the scrape interval?

Which TWO of the following are core responsibilities of the Prometheus server?

Where do you define the scrape interval for a specific target?

Which TSDB component is responsible for ensuring data durability if the server crashes?

What is the difference between a Histogram and a Summary?

Which operator performs a set union in PromQL?

What happens if a label set for a metric changes during its lifetime?

You are performing a 'label_replace' operation. What is the correct syntax for a regex capture group?

Which configuration parameter limits the number of series in the head block?

In the Prometheus data model, what is a 'sample'?

What is the default retention period for Prometheus data?

Which TWO of the following are true about the Pushgateway?

When using the 'scrape_timeout', what happens if the timeout is reached?

When using 'remote_write', how does Prometheus ensure data delivery?

Which function is used to convert a counter rate into a per-second rate over a time range?

Which THREE of the following are required to expose a new metric in an application?

A batch job runs for only 30 seconds every hour. How should you expose these metrics to Prometheus?

Which component allows Prometheus to be scaled horizontally for high availability?

You observe data gaps in your Prometheus graph after increasing the scrape interval. What is the most likely cause?

Which TWO of the following are valid data types in Prometheus?

Which TWO of the following can be configured globally?

When configuring Alertmanager to send notifications to Slack, which block defines the routing tree?

You have a metric that is a gauge and fluctuates. What happens if you use the 'rate()' function on a gauge?

Which THREE factors influence Prometheus memory usage?

Which file format does Prometheus use for its main configuration?

Which metric type is best for reporting the number of requests received by a service?

Which THREE labels are often considered part of the default Prometheus ecosystem metrics?

Which THREE of the following are components of a Prometheus alert state?

Which THREE of the following are valid Prometheus TSDB file types?

What is the purpose of the 'up' metric?

Which TWO of the following are valid Alertmanager configuration blocks?

What is the behavior of the 'absent()' function?

Which TWO of the following are valid ways to run Prometheus?