Exposing Applications CKAD Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   An Ingress rule is not routing traffic to the intended Service. Which of the following is a likely cause?

   • AThe Ingress resource is in a different namespace than the Service.
   • BThe Ingress controller is not installed.
   • CThe Service type is ClusterIP.
   • DThe backend Service name in the Ingress rule does not match the actual Service name.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   In a Service YAML manifest, which field specifies the port that the Service itself listens on?

   • Aspec.ports[].port
   • Bspec.clusterIP
   • Cspec.ports[].targetPort
   • Dspec.selector.app
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A Service named 'frontend' is not routing traffic to pods. The Service YAML is shown below: ```yaml apiVersion: v1 kind: Service metadata: name: frontend spec: selector: app: frontend version: v1 ports: - port: 80 targetPort: 8080 ``` The pods have the labels 'app=frontend' and 'version=v2'. What is the most likely reason the Service is not routing traffic?

   • AThe Service port is 80, but the pods listen on 8080.
   • BThe selector requires both 'app=frontend' and 'version=v1', but the pods have 'version=v2'.
   • CThe Service is of type ClusterIP, which cannot route to pods.
   • DThe pods are not running.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   What is the role of an Ingress controller in Kubernetes?

   • AIt automatically scales pods based on incoming HTTP traffic.
   • BIt implements the rules defined in Ingress resources and routes external HTTP/S traffic to the appropriate Services.
   • CIt encrypts all traffic between pods using mTLS.
   • DIt provides a stable IP address for every Service in the cluster.
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6. 15application · medium

   An organization runs multiple microservices in a Kubernetes cluster. They want to expose several HTTP-based services using a single external IP address, with routing based on the requested hostname (e.g., api.example.com and web.example.com). They also need TLS termination to be handled at the entry point. Which approach should they use?

   • AUse an ExternalName Service to map each hostname to the cluster IP.
   • BCreate a NodePort Service for each microservice and use a DNS round-robin.
   • CDeploy an Ingress controller and create Ingress resources with host-based rules.
   • DCreate a separate LoadBalancer Service for each microservice.
   Reveal Solution Discussion Select an answer first