Kubernetes

What is a Kubernetes Namespace? a) A physical node in a cluster b) A virtual cluster within a physical cluster c) A load balancer for services d) A monitoring tool Answer: b) A virtual cluster within a physical cluster Explanation: A Namespace is a virtual cluster within a Kubernetes cluster that helps organize and manage […]

What is the purpose of Kubernetes Labels? a) To store metadata in key-value pairs for objects b) To generate Pod logs c) To define storage classes d) To create configuration files Answer: a) To store metadata in key-value pairs for objects Explanation: Labels are key-value pairs attached to objects such as Pods or Services, and

What is the purpose of kubeadm in Kubernetes? a) To schedule Pods b) To provide a simple way to set up a Kubernetes cluster c) To manage cloud resources d) To store cluster logs Answer: b) To provide a simple way to set up a Kubernetes cluster Explanation: kubeadm is a tool that helps users

What is a Node in Kubernetes? a) A container image b) A server or VM that runs applications in containers c) A network switch d) A load balancer Answer: b) A server or VM that runs applications in containers Explanation: A Node in Kubernetes is a worker machine, either a physical server or virtual machine,

Which Kubernetes object is used to automatically scale Pods based on resource utilization? a) ReplicaSet b) Horizontal Pod Autoscaler (HPA) c) StatefulSet d) DaemonSet Answer: b) Horizontal Pod Autoscaler (HPA) Explanation: The Horizontal Pod Autoscaler (HPA) automatically scales the number of Pods in a deployment based on observed CPU utilization or other select metrics. Reference:

What is the purpose of Kubernetes Secrets? a) To store encrypted credentials and sensitive information b) To track changes to configurations c) To define network policies d) To backup cluster data Answer: a) To store encrypted credentials and sensitive information Explanation: Secrets in Kubernetes are used to store sensitive information such as passwords, OAuth tokens,

What is the main purpose of a ConfigMap in Kubernetes? a) To store application logs b) To store non-confidential configuration data c) To manage container images d) To update the Kubernetes API Answer: b) To store non-confidential configuration data Explanation: A ConfigMap in Kubernetes is used to store non-confidential configuration data such as environment variables,

What does the kubectl command do in Kubernetes? a) Automates testing b) It is the command-line interface to communicate with Kubernetes clusters c) Monitors application performance d) Handles backups of the cluster Answer: b) It is the command-line interface to communicate with Kubernetes clusters Explanation: kubectl is the command-line tool that allows users to interact

What is a PersistentVolume (PV) in Kubernetes? a) A network protocol b) A storage resource provisioned by the administrator c) A type of Service d) A way to scale containers Answer: b) A storage resource provisioned by the administrator Explanation: A PersistentVolume (PV) is a piece of storage in a Kubernetes cluster that is provisioned

How can you expose a Kubernetes deployment to external traffic? a) By using a DaemonSet b) By creating a Service of type LoadBalancer or NodePort c) By creating a StatefulSet d) By using etcd Answer: b) By creating a Service of type LoadBalancer or NodePort Explanation: You can expose a Kubernetes deployment to external traffic

What is the primary purpose of a Kubernetes Ingress? a) To scale applications b) To provide external access to services c) To manage storage d) To deploy applications Answer: b) To provide external access to services Explanation: An Ingress is an API object in Kubernetes that manages external access to services, typically HTTP and HTTPS

What is Helm in the Kubernetes ecosystem? a) A tool for scaling Pods b) A package manager for Kubernetes applications c) A logging tool d) A Kubernetes API wrapper Answer: b) A package manager for Kubernetes applications Explanation: Helm is a package manager for Kubernetes, which simplifies the deployment and management of applications through reusable

What is a DaemonSet in Kubernetes? a) A type of database for storing logs b) A deployment strategy c) Ensures that a copy of a Pod runs on all nodes d) A way to create stateful applications Answer: c) Ensures that a copy of a Pod runs on all nodes Explanation: A DaemonSet ensures that

Which Kubernetes component ensures communication between different nodes in a cluster? a) Kube-proxy b) Kube-scheduler c) Kube-apiserver d) etcd Answer: a) Kube-proxy Explanation: Kube-proxy is a network component in Kubernetes that ensures that services can communicate with each other across different nodes within the cluster. Reference: Kubernetes Quiz – MCQ – Multiple Choice Questions

What is the role of Kubelet in Kubernetes? a) To manage containers on a node b) To store configuration files c) To monitor network traffic d) To schedule Pods Answer: a) To manage containers on a node Explanation: The Kubelet is an agent that runs on each node in the Kubernetes cluster. It ensures that

How do you scale a deployment in Kubernetes? a) kubectl scale deployment <deployment-name> –replicas=<number> b) kubectl create scale <deployment-name> c) kubectl replicas set –scale <number> d) kubectl deploy replicas <number> Answer: a) kubectl scale deployment <deployment-name> –replicas=<number> Explanation: To scale a Kubernetes deployment, you use the kubectl scale deployment command followed by the desired number

What is the purpose of a StatefulSet in Kubernetes? a) To create stateless applications b) To manage stateful applications c) To store logs of the cluster d) To monitor network traffic Answer: b) To manage stateful applications Explanation: A StatefulSet is used in Kubernetes to manage stateful applications, such as databases, where each Pod needs

Which command is used to deploy an application in Kubernetes? a) kubectl create deployment b) kubectl deploy app c) kubectl deploy pod d) kubectl build app Answer: a) kubectl create deployment Explanation: The kubectl create deployment command is used to create a new deployment for an application in Kubernetes. Reference: Kubernetes Quiz – MCQ –

What is a ReplicaSet in Kubernetes? a) A tool to clone Pods b) Ensures a specified number of Pod replicas are running c) A backup service for nodes d) A command to restart Kubernetes Answer: b) Ensures a specified number of Pod replicas are running Explanation: A ReplicaSet ensures that a specified number of identical

What is the role of the Kube-scheduler in Kubernetes? a) Schedules tasks on nodes b) Monitors application performance c) Configures networking between Pods d) Stores application logs Answer: a) Schedules tasks on nodes Explanation: The Kube-scheduler is responsible for assigning Pods to available nodes in the Kubernetes cluster based on resource availability and other constraints.

What is a Kubernetes Service? a) A Docker container b) A static IP address for external access c) An abstraction that defines a logical set of Pods and a policy to access them d) A load balancer for physical servers Answer: c) An abstraction that defines a logical set of Pods and a policy to

What is etcd used for in Kubernetes? a) Storage for container images b) Storing cluster data c) Load balancing d) Monitoring logs Answer: b) Storing cluster data Explanation: etcd is a distributed key-value store that stores all the cluster data for Kubernetes, including configuration and state information. Reference: Kubernetes Quiz – MCQ – Multiple Choice

Which component of Kubernetes is responsible for managing the state of the cluster? a) Kubelet b) etcd c) Kube-scheduler d) Kube-apiserver Answer: d) Kube-apiserver Explanation: The Kube-apiserver is the control plane component that exposes the Kubernetes API and manages the state of the Kubernetes cluster. Reference: Kubernetes Quiz – MCQ – Multiple Choice Questions

What is a Kubernetes Pod? a) A virtual machine b) The smallest deployable unit in Kubernetes c) A network protocol d) A configuration file Answer: b) The smallest deployable unit in Kubernetes Explanation: A Pod is the smallest and simplest Kubernetes object that represents a single instance of a running process in a cluster, and

What is Kubernetes primarily used for? a) Managing databases b) Orchestrating containerized applications c) Running virtual machines d) Hosting static websites Answer: b) Orchestrating containerized applications Explanation: Kubernetes is an open-source platform that automates the management, scaling, and deployment of containerized applications across clusters of machines. Reference: Kubernetes Quiz – MCQ – Multiple Choice Questions