704.4 Tracing (weight: 2) DEVOPS-TOOLS-ENGINEER Practice Questions (Page 6)

Questions 26–29

1. 26foundation · easy

   What is the role of OpenTelemetry in the tracing ecosystem?

   • AIt is a replacement for Kubernetes for deploying tracing infrastructure
   • BIt is a protocol for transmitting trace data between services
   • CIt is a vendor-neutral standard for generating and exporting telemetry data, including traces
   • DIt is a commercial tracing backend that competes with Jaeger and Zipkin
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A team is migrating a monolithic application to microservices. They want to add tracing to the new services. The services are written in different languages (Go, Python, and Node.js). They want a single, vendor-neutral way to instrument all services and send data to their existing Jaeger backend. What should they use?

   • AUse a single OpenTelemetry SDK in one language and have other services call it via HTTP.
   • BUse a sidecar proxy to automatically generate traces for all services.
   • CUse the OpenTelemetry SDKs for each language and configure the Jaeger exporter.
   • DUse the Jaeger client library for each language.
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A DevOps team is investigating a spike in error rates for a checkout service. They have traces showing the failing requests, but they need to understand if the errors are correlated with a recent deployment or a change in resource usage. They already have Prometheus metrics and Loki logs. What is the most effective way to correlate the traces with the metrics and logs?

   • ADisable tracing and rely on metrics and logs alone to find the root cause.
   • BUse a tool like Grafana that can link traces to logs and metrics via common labels like `service` and `trace_id`.
   • CManually search the logs for the trace IDs of the failing requests and compare timestamps with the metrics.
   • DExport the traces to a CSV file and import them into a spreadsheet with the metrics.
   Reveal Solution Discussion Select an answer first
5. 29application · medium

   A team is using Zipkin for tracing. They are now adopting OpenTelemetry for instrumentation. They want to continue using Zipkin as their backend. What should they do?

   • AConfigure the OpenTelemetry SDKs to export trace data to Zipkin using the Zipkin exporter.
   • BUse the Zipkin client libraries for instrumentation and send data to OpenTelemetry.
   • CReplace Zipkin with Jaeger because OpenTelemetry does not support Zipkin.
   • DRun both Zipkin and OpenTelemetry side-by-side and manually correlate the data.
   Reveal Solution Discussion Select an answer first