Cloud Native Observability GCSA Practice Questions (Page 8)

Questions 36–40

1. 36expert · hard

   A company is standardizing on OpenTelemetry for all new services. They have an existing observability platform that only supports the Zipkin trace format, not OTLP. They want to use OpenTelemetry SDKs in their services but cannot change the backend. What is the most efficient way to integrate OpenTelemetry with the existing backend?

   • AHave the services send traces directly to the backend using the Zipkin API without using OpenTelemetry.
   • BConfigure the OpenTelemetry Collector to receive OTLP from services and export traces in the Zipkin format to the existing backend.
   • CReplace the existing backend with a new one that supports OTLP.
   • DUse the Zipkin exporter directly in the OpenTelemetry SDKs in each service.
   Reveal Solution Discussion Select an answer first
2. 37foundation · easy

   Which tool is commonly used for collecting and querying metrics in cloud native environments?

   • APrometheus
   • BFluentd
   • CGrafana Loki
   • DJaeger
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4. 38application · medium

   A startup is building a cloud native application on Kubernetes and wants to select an observability platform. They need to collect metrics, logs, and traces from multiple services, and they want to avoid vendor lock-in. They also have a limited budget and prefer open-source tools. Which platform choice best meets these requirements?

   • ADeploy the Grafana stack (Prometheus, Loki, Tempo) on the Kubernetes cluster.
   • BUse only Prometheus for metrics and rely on Kubernetes logs for debugging.
   • CUse a commercial SaaS observability platform that offers a free tier.
   • DAdopt OpenTelemetry and send data to a self-hosted Jaeger instance only.
   Reveal Solution Discussion Select an answer first
5. 39expert · hard

   An SRE team is investigating a security incident where an attacker may have exploited a vulnerability in a microservice. They have metrics, logs, and traces available. They need to determine the exact sequence of requests that led to the exploitation and what data was accessed. Which approach is most effective?

   • AReview the Kubernetes audit logs to see which pods were accessed during the incident.
   • BAnalyze metrics to identify the time of the attack and then review all logs from that time window.
   • CUse traces to reconstruct the request path and correlate them with logs to see the exact payloads and responses for each request.
   • DUse only the application logs and search for error messages related to the vulnerability.
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6. 40expert · hard

   A company is migrating from a proprietary APM vendor to an open-source stack. They have thousands of services instrumented with the vendor's SDK. They want to minimize code changes and avoid vendor lock-in. Which migration path is most effective?

   • ARewrite all services to use OpenTelemetry SDKs in one release.
   • BKeep the vendor SDK but send data to the new backend directly.
   • CUse a sidecar container to intercept and convert all network traffic to OpenTelemetry.
   • DUse the OpenTelemetry Collector to receive the vendor's telemetry format and export it to the new backend, then gradually replace SDKs.
   Reveal Solution Discussion Select an answer first