Create an Implementation of Service Mesh VCAP-VCF-VKS Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   After deploying a service mesh, a DevOps engineer notices that some services are not receiving traffic as expected. The mesh uses a VirtualService with a route rule that sends 50% of traffic to v1 and 50% to v2 of the `inventory` service. The engineer wants to verify that the traffic split is working correctly. Which validation method should they use?

   • ARun a single test request and check the response headers for the version of the service that handled it
   • BGenerate a large number of test requests and inspect the traffic metrics in the mesh dashboard for the distribution between v1 and v2
   • CCheck the Envoy cluster configuration on the sidecar to confirm the weights are set to 50/50
   • DUse `kubectl logs` on the v1 and v2 pods to count the number of requests each receives
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2. 12foundation · easy

   What is a primary benefit of integrating a service mesh with existing infrastructure for observability?

   • AIt eliminates the need for any monitoring tools
   • BIt automatically fixes all application errors
   • CIt replaces the need for a logging system
   • DIt provides enhanced metrics, logs, and traces for services
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4. 13foundation · easy

   Which of the following is a key aspect to validate in a service mesh implementation?

   • AThe color of the sidecar proxy container
   • BThe number of control plane replicas
   • CThe correct enforcement of security policies
   • DThe physical location of the data plane
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5. 14expert · hard

   A company is integrating a service mesh with an existing monitoring stack that uses Prometheus and Grafana. The mesh generates telemetry data (metrics, logs, traces) from sidecar proxies. The team wants to ensure that the mesh's telemetry is available in the existing Prometheus instance without deploying a separate Prometheus. Which integration approach should they use?

   • AConfigure the mesh's Prometheus to scrape sidecar metrics and use federation to pull metrics into the existing Prometheus
   • BConfigure the existing Prometheus to scrape sidecar metrics directly by adding scrape targets for each pod
   • CUse the mesh's tracing backend to send traces to the existing Grafana
   • DExport mesh telemetry to a file and have the existing Prometheus read the file
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6. 15foundation · easy

   When planning a service mesh implementation, which factor is most important to consider regarding application requirements?

   • AThe need for features such as traffic management, security, and observability
   • BThe physical location of the application servers
   • CThe programming language used to develop the applications
   • DThe number of developers on the team
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