Linux Foundation CKAD Certification Exam Sample Questions

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Linux Foundation CKAD Sample Questions:

01. Which Kubernetes resources can be used to route external traffic to internal Services?
(Choose 2.)
a) PersistentVolume
b) NodePort
c) ClusterIP
d) Ingress
 
02. How does a Service of type ClusterIP expose its backend Pods?
a) It routes traffic to the internal IP address of the service within the cluster
b) It routes traffic to the external IP address of the node
c) It creates a load balancer
d) It forwards traffic directly to the container
 
03. What does a Kubernetes Service of type NodePort expose?
a) Exposes the service to a specific Pod
b) Exposes the service on the cluster's internal IP
c) Exposes the service on a cloud load balancer
d) Exposes the service on a specific port on each node
 
04. Which Service type is required to expose an application externally through a cloud provider's load balancer?
a) NodePort
b) ClusterIP
c) LoadBalancer
d) Ingress
 
05. A Deployment is created without specifying a strategy in its spec. Which update strategy does it use by default?
a) Recreate
b) Rolling Update
c) Blue-Green
d) Canary
 
06. Which Kubernetes component is responsible for maintaining network rules on each node so that Service traffic reaches the correct Pods?
a) Metrics-server
b) Kubelet
c) Kube-proxy
d) Kube-scheduler
 
07. A Kubernetes cluster is running with only the RBAC objects it bootstraps automatically, and no custom RBAC has been applied. How many namespaced Role objects exist in the default namespace?
a) 1
b) 2
c) 3
d) 0
 
08. Which of the following makes a Pod directly reachable from outside the cluster using each node's IP address and a static port?
a) Set a NodePort
b) Create a ClusterIP Service
c) Use a ConfigMap
d) Create an Ingress
 
09. How can an entire Secret be exposed to a container as environment variables?
a) By mounting the Secret as a volume
b) By defining it in the spec.containers.envFrom.secretRef
c) By using spec.volumes.envFrom in the PodSpec
d) By setting the secretName in the PodSpec
 
10. Which resource routes external HTTP traffic to Services based on hostnames or URL paths?
a) Ingress
b) ServiceAccount
c) ConfigMap
d) PersistentVolumeClaim

Answers:

Question: 01
Answer: b, d		 Question: 02
Answer: a		 Question: 03
Answer: d		 Question: 04
Answer: c		 Question: 05
Answer: b
Question: 06
Answer: c		 Question: 07
Answer: d		 Question: 08
Answer: a		 Question: 09
Answer: b		 Question: 10
Answer: a

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