Microservices Architecture and Deployment GCSA Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A financial services company is deploying microservices on Kubernetes. They need to ensure that all inter-service communication is encrypted and that only authorized services can communicate with each other. They also want to avoid managing certificates manually. Which solution should they implement?

   • ANetwork policies only
   • BManual certificate distribution to each pod
   • CService mesh with automatic mTLS
   • DAPI gateway with TLS termination
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   An operations team is troubleshooting a performance issue in a microservices application. They need to identify which service is causing a bottleneck and understand the flow of a single request across multiple services. Which observability practice should they implement to get this information?

   • ANetwork packet capture
   • BCentralized logging only
   • CMetrics collection only
   • DDistributed tracing
   Reveal Solution Discussion Select an answer first
4. 18expert · hard

   A microservices application is experiencing cascading failures when the inventory service becomes slow. The team wants to prevent the order service from being overwhelmed by requests to the failing inventory service. They also want to automatically recover when the inventory service becomes healthy again. Which pattern should they implement?

   • ARetry pattern with exponential backoff
   • BLoad balancing pattern
   • CCircuit breaker pattern
   • DBulkhead pattern
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   An operations team is investigating a performance degradation in a microservices application. They have centralized logging and metrics, but they cannot determine which specific service is causing the delay for a particular user request. They need to trace the request across all services. Which additional component should they implement?

   • AAdditional metrics dashboards
   • BNetwork monitoring tools
   • CMore detailed logging
   • DDistributed tracing with correlation IDs
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A healthcare company is deploying microservices on Kubernetes. They need to ensure that only the payment service can access the patient database service, and that all inter-service communication is encrypted. They also want to avoid managing certificates manually. Which combination of Kubernetes features should they use?

   • ANetwork policies and a service mesh with automatic mTLS
   • BNetwork policies only
   • CAPI gateway with TLS
   • DService mesh only
   Reveal Solution Discussion Select an answer first