Know How to Use Ingress Controllers and Ingress Resources CKA Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What happens to requests that do not match any rule in an Ingress resource if no `defaultBackend` is specified?

   • AThey receive an HTTP 404 response from the Ingress controller
   • BThey are routed to the first Service defined in the Ingress
   • CThey are routed to the Ingress controller's own Service
   • DThey are dropped silently
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2. 2expert · hard

   A company has an Ingress resource with a rule for 'app.example.com' and a default backend 'maintenance-svc'. They also have a second Ingress resource with a rule for 'app.example.com/admin' pointing to 'admin-svc'. Both use the same NGINX Ingress controller. A request to 'http://app.example.com/unknown' returns the maintenance page. What is the most likely reason?

   • AThe second Ingress resource has a higher priority and overrides the first Ingress's default backend.
   • BThe default backend in the first Ingress is handling the request because no rule matches '/unknown'.
   • CThe Ingress controller is configured to use the default backend from the last created Ingress resource.
   • DThe 'maintenance-svc' service is the only service with a matching port.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   An Ingress resource is created but traffic is not being routed to the backend Service. What is a common first step to diagnose the issue?

   • ACheck the Ingress controller's logs for errors
   • BDelete and recreate the Ingress resource
   • CCheck the Ingress resource's status field for the assigned IP address
   • DRestart all nodes in the cluster
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5. 4foundation · easy

   What happens if an Ingress rule does not specify a `host` field?

   • AThe rule only matches traffic with an empty Host header
   • BThe rule is ignored by the Ingress controller
   • CThe rule matches all traffic regardless of the hostname
   • DThe rule is automatically assigned the Ingress resource's name as the host
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6. 5foundation · easy

   In an Ingress resource, which field references the Secret containing the TLS certificate?

   • Aspec.defaultBackend.service.name
   • Bspec.tls[].secretName
   • Cmetadata.annotations['kubernetes.io/ingress.class']
   • Dspec.rules[].http.paths[].backend.service.name
   Reveal Solution Discussion Select an answer first