Kubernetes 101 quiz

What is Kubernetes?

• A database management system

• An container orchestration platform

• A programming language

• A virtualization platform

which of the following depicts the correct symbiotic relationship of each of the 3 Major Architectural components of kubernetes ?

(select the correct hierarchy - largest component > x > to the smallest)

• Nodes > Cluster > pods

• 1. Cluster > Nodes > Pods

• 1. Pods > Cluster > Nodes

Answer explanation

1. Cluster > Nodes > Pods

1. Cluster = foundation 

2. Nodes = live on clusters 

3. Pods = smallest deployable units which live on nodes

Regarding Control-plane node components, which component is absolutely necessary for you to be able to run kubectl commands to interact with the cluster?

• Kube Scheduler

• Etcd

• Kube API Server

•  Kube Controller Manager

This component acts as the distributed brain of a Kubernetes cluster, providing a reliable and consistent storage solution for configuration data and serves as a mechanism for coordinating and synchronizing actions across the various components of the cluster

Which control-plane node component does this describe

(fill in the blank)

Which control-plane node component watches for newly created Pods that have no assigned nodes and selects a worker node for them to run on.

• Container runtime

• Kube Scheduler

• Cloud Controller Manager

• Kube Controller Manager

1. Which architectural component is the most responsible for managing and running pods and specifically handles the execution of containerized workloads

• Cluster

• Control-plane Nodes

• Worker Nodes

Answer explanation

worker nodes are responsible for executing the containers within pods and ensuring that the desired state is maintained

control plane nodes focus on the management, coordination, and configuration of the cluster, Control plane nodes are not responsible for running or directly managing the execution of containers within pods.

 Each worker node has three crucial components, what are they?

• Cloud Controller Manager,

  • Etcd,

  • kube-proxy

• kube scheduler,

  kube-proxy

  container runtime,

•  kubelet,

  container runtime,

  kube-proxy

• which worker node component handles communications between the Master and other worker nodes?

• Container runtime

• Kubelet

• Kube-proxy

Which of the following are true about Pods

(select all that are true)

• its the smallest single deployable unit in Kubernetes 

• Pods each have a unique  IP address and hostname

• It serves as the basic building block for deploying and running applications.

• Pods will remain active until the specific process completes, or until  resources to support the pod run out

what command line tool allows us to perform various operations on Kubernetes resources and to interact with the kubernetes environment ?

• mysql cli

• Kubectl cli

• docker cli

• tanzu cli