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100+ Free Elastic Certified Observability Engineer Practice Questions

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In Elastic APM, what does 'central configuration' allow you to do?

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2026 Statistics

Key Facts: Elastic Certified Observability Engineer Exam

~60

Exam Questions

Elastic

70%

Passing Score

Elastic

90 min

Exam Duration

Elastic

$250

Exam Fee

Elastic

14 days

Retake Wait

Elastic FAQ

2 years

Credential Validity

Elastic

Elastic Certified Observability Engineer is approximately 60 multiple-choice questions in 90 minutes with a 70% passing score, costing $250 USD per attempt. Delivered remotely via TrueAbility and Honorlock. Covers APM, Metricbeat/infrastructure view, Filebeat/log management, Heartbeat/synthetic monitoring, RUM, and OTel OTLP ingest. Credential valid for 2 years.

Sample Elastic Certified Observability Engineer Practice Questions

Try these sample questions to test your Elastic Certified Observability Engineer exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which APM agent configuration option controls how many transactions are sampled per second?
A.transaction_sample_rate
B.transaction_max_spans
C.capture_body
D.stack_trace_limit
Explanation: transaction_sample_rate sets the percentage (0.0–1.0) of transactions that are sampled and sent to APM Server, controlling ingest volume.
2In Elastic APM distributed tracing, what header is used to propagate trace context between services?
A.traceparent
B.X-B3-TraceId
C.X-Forwarded-For
D.elastic-apm-traceid
Explanation: The W3C Trace Context standard defines the traceparent header, which Elastic APM agents use by default to propagate distributed trace context across HTTP requests.
3When configuring the Elastic APM Node.js agent, which method must be called before any other require statements?
A.require('elastic-apm-node').start()
B.require('elastic-apm-node').init()
C.require('elastic-apm-node').connect()
D.require('elastic-apm-node').configure()
Explanation: The Node.js APM agent must be started with require('elastic-apm-node').start() as the very first statement so it can monkey-patch modules before they are loaded.
4Which index template does Elastic APM use to store transaction documents?
A.traces-apm.*
B.metrics-apm.*
C.logs-apm.*
D.apm-transactions-*
Explanation: With data streams, APM transaction documents are stored in the traces-apm.* data stream, following the Elastic Common Schema naming convention.
5What is the purpose of the APM Server's secret token configuration?
A.To authenticate APM agents sending data to APM Server
B.To encrypt trace data at rest in Elasticsearch
C.To authorize Kibana access to APM indices
D.To sign JWT tokens for RUM sessions
Explanation: The secret token is a shared secret that APM agents include in every request to APM Server, allowing the server to reject unauthorized data ingestion.
6Which APM concept represents a single unit of work performed within a service, such as an HTTP request or a background job?
A.Transaction
B.Span
C.Trace
D.Error
Explanation: A transaction is the highest-level unit of work in APM, representing a complete request or job within a single service. Spans are child operations within a transaction.
7For the Java APM agent, how is the agent most commonly attached to a JVM application?
A.Using the -javaagent JVM flag at startup
B.By importing the elastic-apm-java library in pom.xml
C.By calling ElasticApm.startTransaction() in the main method
D.By enabling the Java Management Extensions (JMX) connector
Explanation: The Java APM agent is a Java agent JAR attached to the JVM using the -javaagent:/path/to/elastic-apm-agent.jar flag, enabling bytecode instrumentation without code changes.
8In APM, what is a 'span'?
A.A single operation within a transaction, such as a DB query or outgoing HTTP call
B.The complete end-to-end path of a request across all services
C.A sampled subset of transaction data
D.A performance benchmark for a service endpoint
Explanation: A span captures one discrete operation inside a transaction, such as a database query, cache lookup, or external service call, including its start time and duration.
9What Metricbeat module collects system-level metrics such as CPU, memory, and disk I/O?
A.system
B.host
C.os
D.node
Explanation: The Metricbeat 'system' module collects host-level metrics including CPU usage, memory usage, network I/O, disk I/O, and filesystem statistics.
10Which Elastic Agent policy setting controls the interval at which metrics are collected?
A.period
B.interval
C.frequency
D.schedule
Explanation: The 'period' setting in Elastic Agent (and Metricbeat) integration configurations defines how frequently metrics are collected, specified as a duration string like '10s' or '1m'.

About the Elastic Certified Observability Engineer Exam

The Elastic Certified Observability Engineer exam validates skills in building and operating the Elastic Observability stack. It covers APM and distributed tracing, infrastructure metrics monitoring, log management, uptime and synthetic monitoring, Real User Monitoring (RUM), and OpenTelemetry (OTel) integration.

Questions

60 scored questions

Time Limit

90 minutes

Passing Score

70%

Exam Fee

$250 USD per attempt (Elastic)

Elastic Certified Observability Engineer Exam Content Outline

~25%

APM and Distributed Tracing

APM Server deployment, APM agent configuration (Java, Node.js, Python, Go, .NET, Ruby), spans, traces, transactions, parent/child correlation, service maps, error tracking, and distributed trace waterfall views.

~20%

Metrics and Infrastructure Monitoring

Metricbeat modules, infrastructure inventory view, host metrics (CPU, memory, network, disk), Docker and Kubernetes monitoring, node and pod metrics, and metric threshold alerting.

~20%

Log Management

Filebeat inputs and modules, log parsing with ingest pipelines, data streams for log data, log categorization, log patterns in Kibana, and log threshold alerting rules.

~10%

Uptime and Synthetic Monitoring

Heartbeat HTTP/TCP/ICMP monitors, synthetic monitoring with Node.js journey scripts, SLO tracking, and uptime alerting.

~10%

Real User Monitoring (RUM)

RUM JavaScript agent, page load and resource timing, Core Web Vitals (LCP, FID, CLS), user session tracking, and geographic performance breakdown.

~15%

OpenTelemetry Integration

OTel Collector configuration, OTLP exporter to Elasticsearch, semantic conventions for spans and metrics, correlating OTel and Elastic APM data in Kibana, and migration paths from native Elastic agents.

How to Pass the Elastic Certified Observability Engineer Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 60 questions
  • Time limit: 90 minutes
  • Exam fee: $250 USD per attempt

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Elastic Certified Observability Engineer Study Tips from Top Performers

1Deploy a full Elastic Observability stack locally: Elasticsearch, Kibana, APM Server, Metricbeat, Filebeat, and Heartbeat.
2Instrument a sample app with at least two different APM agent languages to understand span and trace ID correlation.
3Know the data stream naming convention for observability data: logs-*, metrics-*, traces-*.
4Practice configuring Metricbeat system and Docker modules and reading the infrastructure view in Kibana.
5Learn OTel Collector pipelines — receivers, processors, and exporters — and how to point OTLP to Elasticsearch.
6Understand Core Web Vitals (LCP, FID, CLS) and how RUM captures them for real user sessions.

Frequently Asked Questions

What is the Elastic Certified Observability Engineer exam?

The exam validates your ability to configure and operate the Elastic Observability stack. You are tested on APM distributed tracing, infrastructure metrics, log management, synthetic monitoring, Real User Monitoring, and OpenTelemetry integration — the full observability lifecycle in Elasticsearch and Kibana.

How does APM work in the Elastic Stack?

APM agents are installed in applications to capture spans, transactions, and errors, which are sent to APM Server and stored in Elasticsearch data streams. Kibana displays service maps, trace waterfalls, error rates, and latency percentiles. Each span has a trace ID for distributed correlation.

What is the difference between Metricbeat and APM for monitoring?

Metricbeat collects host-level infrastructure metrics (CPU, memory, disk, network) and system/service module data. APM instruments application code to capture request latency, throughput, error rates, and distributed traces at the service layer. Both are commonly deployed together.

How does OpenTelemetry integrate with Elastic?

Elastic supports the OpenTelemetry Protocol (OTLP) natively. You configure the OTel Collector to export traces, metrics, and logs to Elasticsearch via OTLP HTTP or gRPC endpoints. Data appears in the same Kibana APM and observability views alongside native Elastic data.

How long should I study for the Elastic Observability Engineer exam?

Plan for 50-90 hours over 6-10 weeks. Set up a local Elastic stack and practice configuring APM agents, Metricbeat modules, Filebeat, Heartbeat monitors, RUM, and OTel pipelines. The 90-minute exam rewards candidates who have done real configuration work.