OpenTelemetry Certified Associate (OTCA) Practice Exams 4+1

Become confident in certifying as an OpenTelemetry Certified Associate (OTCA) with abundant practice exams.

Some of these practice questions are more challenging than the actual exam questions. By solving these difficult problems, you can better prepare for the real exam. This is particularly true for The OpenTelemetry API and SDK (46% weight) and Collector sections. If you can score above 75% (the passing threshold) on the mock exam, you can be confident that you will pass the actual exam. Don't worry if you get questions wrong. The strategy is to fail fast, read the explanations and reference materials to understand the concepts, then solve similar problems again to prepare for the exam in a short period of time.

This comprehensive practice exam collection contains 60 carefully crafted questions covering all essential OTCA domains: Fundamentals of Observability (18%), The OpenTelemetry API and SDK (46%), The OpenTelemetry Collector (26%), and Maintaining and Debugging Observability Pipelines (10%). Each question includes detailed explanations for all answer choices, not just the correct one, helping you understand why certain options are wrong and reinforcing core concepts. The questions range from basic telemetry signal types and span concepts to advanced context propagation with W3C Trace Context headers, sampling strategies (head-based vs tail-based), semantic conventions for HTTP/gRPC instrumentation, Collector pipeline configuration with batch processors and memory limiters, OTLP receiver endpoint settings, attribute processor transformations, Prometheus remote write exporter configurations, and troubleshooting data loss with queue retry mechanisms. You'll encounter real-world scenarios involving distributed trace correlation with trace IDs and span IDs, metric aggregation temporality (cumulative vs delta), log context injection for correlation, Collector deployment patterns (gateway vs agent mode), scaling strategies for high-throughput pipelines, and integration with observability backends like Jaeger, Prometheus, Loki, and Grafana. The practice materials are based on official OpenTelemetry documentation, covering SDK usage patterns, Collector configuration best practices, and observability pipeline design that professional SREs use daily. Each mock exam follows the same format as the official OTCA certification, ensuring you're familiar with question styles and time constraints before taking the actual test.