Understanding Of Kubernetes Concepts
Blog URL: https://dennyzhang.com/kubernetes-concept
Tag: #quiz, #kubernetes
Quiz: Understanding Of Kubernetes Concepts
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Basic understanding of common Kubernetes concepts
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Question 1 of 5
1. Question
1 pointsCategory: kubernetesCan I start one Pod with multiple containers?
Correct
Comments:
– Pods: Tightly coupled group of containersFollow-up:
– List two scenarios why I need to do that?Incorrect
Comments:
– Pods: Tightly coupled group of containersFollow-up:
– List two scenarios why I need to do that? -
Question 2 of 5
2. Question
1 pointsCategory: kubernetesIf I have two projects to be deployed in one k8s cluster. I should define multiple resource of which one in below?
Correct
Comments:
Context: https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clustersFollow-up:
– Why people need multiple namespaces? Why people need multiple context?
– List some security vulnerabilities with namespace and context in current k8s version.Incorrect
Comments:
Context: https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clustersFollow-up:
– Why people need multiple namespaces? Why people need multiple context?
– List some security vulnerabilities with namespace and context in current k8s version. -
Question 3 of 5
3. Question
1 pointsCategory: kubernetesLet’s say I have started a Pod with one InitContainer and one container. If the InitContainer exit, will the Pod fail to start or not?
Correct
Comments:
– Init Containers: https://kubernetes.io/docs/concepts/workloads/pods/init-containersFollow-up:
– How to check log of InitContainers?Incorrect
Comments:
– Init Containers: https://kubernetes.io/docs/concepts/workloads/pods/init-containersFollow-up:
– How to check log of InitContainers? -
Question 4 of 5
4. Question
1 pointsCategory: kubernetesInside one Pod, how to pass information from one container to another?
Correct
Comments:
– Pods: Tightly coupled group of containersFollow-up:
– What data is stored in etcd?Incorrect
Comments:
– Pods: Tightly coupled group of containersFollow-up:
– What data is stored in etcd? -
Question 5 of 5
5. Question
1 pointsCategory: kubernetesWhich process of the following will unlikely to run in Kubernetes master node?
Correct
Comments:
The Kubernetes Master is a collection of three processes that run a single node in your cluster, which is designated as the master node. The processes are kube-apiserver, kube-controller-manager and kube-scheduler.Each individual non-master node in your cluster runs two processes: kubelet, kube-proxy
Follow-up:
– If my cluster run into low hardware resource, we might need to add more master nodes or worker nodes.
– K8S cluster performance issuesIncorrect
Comments:
The Kubernetes Master is a collection of three processes that run a single node in your cluster, which is designated as the master node. The processes are kube-apiserver, kube-controller-manager and kube-scheduler.Each individual non-master node in your cluster runs two processes: kubelet, kube-proxy
Follow-up:
– If my cluster run into low hardware resource, we might need to add more master nodes or worker nodes.
– K8S cluster performance issues