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Wondering if you are fully ready for the PCA? Test your knowledge with 62 real-world Linux Foundation Prometheus Certified Associate exam questions provided by Actual4Labs, accessible anywhere via our responsive platforms in 2026.
| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Prometheus Certified Associate |
| Exam Number: | PCA |
| Related Certifications: | CKA (Kubernetes Administrator) CKAD (Kubernetes Application Developer) KCNA (Kubernetes and Cloud Native Associate) |
| Passing Score: | 70% |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple Choice (Single), Multiple Choice (Multiple) |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Exam Price: | $250 USD |
| Real Exam Qty: | 65 |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored exam (remote invigilated) |
| Pre Condition: | Basic understanding of Linux, command-line, and general monitoring concepts recommended. Familiarity with Kubernetes is helpful but not required. |
| Official Syllabus URL: | https://training.linuxfoundation.org/certification/prometheus-certified-associate/ |
| Section | Weight | Objectives |
|---|---|---|
| PromQL | 25% | - Selectors and matchers - Subqueries and nested queries - Vector matching (one-to-one, one-to-many, many-to-many) - Operators and logical/set operations - Aggregation operators - Functions (rate, irate, increase, histogram_quantile, etc.) |
| Data Visualization | 10% | - Dashboard best practices - Query visualization techniques - Prometheus expression browser - Grafana integration |
| Prometheus Fundamentals | 15% | - Prometheus use cases and limitations - Prometheus architecture and components - Prometheus ecosystem (Exporters, Pushgateway, Alertmanager) - Data model and metric types |
| Operations and Troubleshooting | 15% | - Common issues and debugging - Performance optimization - Service discovery - High availability and federation - Prometheus configuration files - Storage and retention - Relabeling and metric relabeling |
| Instrumentation | 15% | - Best practices for labeling and naming - Client libraries (Python, Go, Java, Node.js) - Exposition format and metrics endpoints - Direct instrumentation vs. Pushgateway |
| Monitoring and Alerting | 20% | - Recording rules - Notification routing and silencing - Alertmanager configuration - Alerting rules and annotations - Alert severity levels |
The PCA exam is a core requirement for the Cloud & Containers certification at the Intermediate level. Earning this validates your skills for credentials like CKA (Kubernetes Administrator), CKAD (Kubernetes Application Developer), KCNA (Kubernetes and Cloud Native Associate).
Candidates will face 65 questions and have 90 minutes to complete the exam. This means you need strict time management. We strongly recommend taking timed practice tests to ensure you can maintain a steady pace without rushing when under actual exam time pressure.
The official examination fee is $250 USD, and you must achieve a score of 70% to pass. Since retaking the test requires paying the full fee again, utilizing accurate practice materials for thorough self-assessment beforehand is crucial to protect your investment.
Candidate requirements include: Basic understanding of Linux, command-line, and general monitoring concepts recommended. Familiarity with Kubernetes is helpful but not required.. Please verify all eligibility details on the official certification page before scheduling your appointment.
Absolutely. A free PDF demo is available for you to evaluate the quality of our questions. Once purchased, you receive 365 days of free updates. If your access expires, you can renew it at a 50% discount to keep your materials current.
Your PCA practice materials are delivered instantly. You can download them right away, and a copy will be sent to your email within one minute (contact support if not received in 2 hours). You can install the software on an unlimited number of computers. We also offer a 100% Money Back Guarantee: if you fail the corresponding exam within 60 days of purchase, you can claim a full refund. To apply, submit your enrollment slip and official Score Report PDF within 2 days after taking the test (processing takes up to 7 days). Note: failures within 3 days of purchase, downloaded but unattempted exams, free materials, and expired orders are excluded. The payer's name must match the candidate's name. Alternatively, you can exchange your order for two free exams of equal value and keep the original product's updates.
The syllabus is divided into 6 main domains. Key areas include "Prometheus Fundamentals" (15%), "Operations and Troubleshooting" (15%), "Monitoring and Alerting" (20%). For a comprehensive breakdown of all measured skills, please review the complete exam outline table provided above.
Question 1
What does the rate() function in PromQL return?
A. The average of all values in a vector.
B. The number of samples in a range vector.
C. The per-second rate of increase of a counter metric.
D. The total increase of a counter over a range.
Question 2
What's "wrong" with the myapp_filG_uploads_total{userid=,,5123",status="failed"} metric?
A. The metric name should consist of dashes instead of underscores.
B. The userid should not be exposed as a label.
C. The status should not be exposed as a label.
D. The _total suffix should be omitted.
Question 3
What popular open-source project is commonly used to visualize Prometheus data?
A. Loki
B. Grafana
C. Kibana
D. Thanos
Question 4
Where does Prometheus store its time series data by default?
A. In an embedded TSDB on local disk.
B. In-memory only.
C. In etcd.
D. In an external database such as InfluxDB.
Question 5
With the following metrics over the last 5 minutes:
up{instance="localhost"} 1 1 1 1 1
up{instance="server1"} 1 0 0 0 0
What does the following query return:
min_over_time(up[5m])
A. {instance="server1"} 0
B. {instance="localhost"} 1 {instance="server1"} 0
Solutions:
| Question 1 Answer: C | Question 2 Answer: B | Question 3 Answer: B | Question 4 Answer: A | Question 5 Answer: B |
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