CKA Kubernetes Services and Networking Quiz

Submit

3. Select all that apply: Which features are provided by a service mesh like Istio?

Traffic management

Service discovery

Pod scheduling

Security policies

Submit

4. Which annotation is commonly used to configure session affinity on a service?

Service.spec.sessionAffinity

Service.beta.kubernetes.io/aws-load-balancer-type

Traffic.sidecar.istio.io/excludeOutboundPorts

Service.spec.sessionAffinityTimeout

Submit

7. NetworkPolicy selectors work at which layer to control traffic?

Application layer

Network layer (layer 3)

Transport layer (layer 4)

Both layer 3 and 4

8. What is the maximum number of ports a single Kubernetes service can expose?

1

5

No fixed limit

16

9. Which of the following are valid service types in Kubernetes? (Select all that apply)

ClusterIP

NodePort

VirtualIP

LoadBalancer

Submit

11. What is the default service type in Kubernetes when no type is specified?

ClusterIP

NodePort

LoadBalancer

ExternalName

12. What component manages IP tables rules and routes traffic to pod endpoints?

Kubelet

Kube-proxy

CNI plugin

API server

Submit

14. What does DNS in Kubernetes use to discover services within a cluster?

Pod IP addresses

Service names and namespace

Node names

Container registry

15. An Ingress resource requires which component to function?

Kube-scheduler

Ingress controller

Service proxy

Pod network plugin

16. Which Kubernetes object provides HTTP and HTTPS routing to services?

Service

Ingress

NetworkPolicy

Endpoint

17. By default, Kubernetes allows all traffic between pods unless restricted by a NetworkPolicy.

True

False

18. What is the primary purpose of a Kubernetes NetworkPolicy?

Route traffic to pods

Control ingress and egress traffic at the pod level

Load balance requests

Expose services externally

19. A LoadBalancer service type requires what external component to function?

Kube-proxy

Cloud provider load balancer

Ingress controller

Network plugin

20. Which service type exposes a pod on a static port on each node?

ClusterIP

NodePort

LoadBalancer

Headless

CKA Kubernetes Services and Networking Quiz

1. ExternalName service type maps a Kubernetes service to a ____ DNS name.

2.

What first name or nickname would you like us to use?

2. The kubeproxy mode that uses Linux iptables for traffic routing is called ____ mode.

3. Select all that apply: Which features are provided by a service mesh like Istio?

4. Which annotation is commonly used to configure session affinity on a service?

5. CoreDNS is the default ____ server in Kubernetes clusters.

6. An Ingress path rule uses the ____ field to specify URL paths.

7. NetworkPolicy selectors work at which layer to control traffic?

8. What is the maximum number of ports a single Kubernetes service can expose?

9. Which of the following are valid service types in Kubernetes? (Select all that apply)

10. A headless service is created by setting clusterIP to ____.

11. What is the default service type in Kubernetes when no type is specified?

12. What component manages IP tables rules and routes traffic to pod endpoints?

13. The service DNS name format in Kubernetes is ____.

14. What does DNS in Kubernetes use to discover services within a cluster?

15. An Ingress resource requires which component to function?

16. Which Kubernetes object provides HTTP and HTTPS routing to services?

17. By default, Kubernetes allows all traffic between pods unless restricted by a NetworkPolicy.

18. What is the primary purpose of a Kubernetes NetworkPolicy?

19. A LoadBalancer service type requires what external component to function?

20. Which service type exposes a pod on a static port on each node?