Observability Concepts

What is the primary benefit of using a pull-based model for monitoring?

What is the purpose of 'labels' in Prometheus?

Which of these is NOT a Golden Signal?

You are deploying Prometheus in a cluster with highly dynamic ephemeral pods. Which concern is the most significant regarding cardinality?

A system is experiencing high latency. You need to identify if the latency is caused by external dependencies. Which of the Four Golden Signals is most relevant for this discovery?

When designing a monitoring strategy, why should you avoid monitoring 'everything'?

Which metric type would best capture the distribution of request latencies?

You are monitoring a legacy batch processing job that runs for only 30 seconds once every 24 hours. Which Prometheus component is necessary to collect these metrics?

What is the primary function of the 'scrape_timeout' configuration?

Which THREE of these represent the Four Golden Signals?

Which of these is considered a 'counter' in Prometheus?

Which TWO are true about Prometheus alerting rules?

You are seeing 'Too many active series' in your Prometheus logs. Which action should be your first priority to address this?

Why might you use an 'exporter' in Prometheus?

A legacy batch job runs once per day and finishes in seconds. Why is a standard Prometheus pull model inadequate here?

Which TWO of the following are primary components of the Prometheus monitoring architecture?

Which of the following describes the 'pull' model's benefit regarding service discovery?

When configuring Service Discovery in Kubernetes, why might you use relabeling?

Which THREE of the following are considered part of the 'Four Golden Signals' of monitoring?

A dashboard shows a latency spike that doesn't correlate with CPU usage. What should you investigate next?

What is the purpose of a Gauge metric?

Which monitoring philosophy is core to the Prometheus architecture?

What is the primary drawback of using the Pushgateway for long-running services?

What is the primary goal of observability?

You are designing a monitoring architecture for an ephemeral, auto-scaling microservices environment. Why is the Prometheus 'pull' model generally preferred over a 'push' model in this scenario?

When evaluating the 'Traffic' golden signal, what is the best metric to watch for a web service?

Your team is defining Service Level Objectives (SLOs) for a web application. Which metric is most indicative of the 'Traffic' golden signal?

How does the 'stale marker' work in Prometheus?

Which tool would you pair with Prometheus to visualize the collected data?

What is the primary difference between a metric and a log?

Which component is strictly required to monitor batch jobs in a Prometheus ecosystem?

Which golden signal would you monitor to detect if a specific API endpoint is returning 404s?

A team is transitioning from a traditional logging system to a metrics-based monitoring approach. Which category of observability data should the team prioritize to specifically identify the 'Latency' golden signal?

Which TWO are true about the 'Summary' metric type?

Which TWO of these are true about the 'Pull' model?

Which THREE items are standard techniques to reduce metric cardinality?

You need to measure the P99 latency of your service. Which PromQL function do you use on a Histogram?

Which TWO of the following are examples of metric data?

Which component is responsible for executing queries written in PromQL?

Which TWO of these are potential side effects of high-cardinality metrics?

An application is emitting logs that contain '5xx' status codes when a service is unavailable. If you want to create an alert that triggers based on the rate of these errors, what is the best practice for observability?

Why are 'logs' essential for debugging, even with perfect metrics?

A developer asks why they should use Distributed Traces instead of simply using high-cardinality metrics to debug a slow request. What is the primary advantage of traces?

Which THREE factors contribute to a 'high cardinality' problem in a Prometheus environment?

In the context of the Four Golden Signals, what does 'Saturation' measure?

You notice that your Prometheus instance memory usage is growing linearly despite constant traffic. What is the most likely cause?

Which TWO statements accurately describe the differences between logs and metrics?

Which TWO are common causes of high-cardinality in Kubernetes environments?

What is 'Monitoring Philosophy' regarding alerts?

Why does the 'rate()' function in PromQL behave unexpectedly on counter resets?

Which THREE features are provided by Grafana when used with Prometheus?

Which THREE actions are commonly performed during the 'relabeling' phase in Prometheus?

Which THREE of these are common Prometheus data sources?

If you have a metric `http_requests_total` and want the increase over 5 minutes, what is the best PromQL syntax?

Which TWO are common types of Prometheus exporters?

An engineer observes a massive spike in Prometheus memory usage after introducing a new custom label that includes a unique user ID. Which observability concept is being violated?

A developer adds a 'user_id' label to an HTTP request counter. What is the operational risk?

Which THREE of these are recommended practices for an observability strategy?

What is the benefit of the 'service discovery' feature in Prometheus?

Why are traces considered distinct from metrics in observability?

An SRE team is transitioning from traditional logs to metrics for performance monitoring. Which scenario best justifies using metrics over logs?

What is the primary role of the 'Alertmanager'?

Which THREE are true regarding the Prometheus TSDB?