Kubernetes Core Components

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What is the main purpose of nodes in a Kubernetes cluster?

Manage Kubernetes components
Host containerized applications (correct)
Provide a shared network namespace to all Pods
Define a logical set of Pods

Which Kubernetes component represents a single instance of a running process in the cluster?

Node
Service
Pod (correct)
Cluster

What is the main function of Services in Kubernetes?

Define a logical set of Pods
Manage Kubernetes components
Host containerized applications
Enable communication between Pods (correct)

In Kubernetes, what is the purpose of labels and selectors?

Identify and group objects for operations (B) Signup and view all the answers

Which component in Kubernetes represents a collection of nodes running containerized applications?

Cluster (A) Signup and view all the answers

What is the smallest deployable unit in Kubernetes?

Pod (B) Signup and view all the answers

What is the purpose of environment variables set by Kubernetes for each active service in a Pod?

To allow Pods to easily locate and connect to services (B) Signup and view all the answers

What is the main purpose of labels in Kubernetes?

To organize and select subsets of objects (B) Signup and view all the answers

How do labels differ from environment variables in Kubernetes?

Labels are arbitrary key-value pairs for objects, while environment variables help Pods connect to services (C) Signup and view all the answers

Which of the following is a purpose of selectors in Kubernetes?

Efficient Resource Allocation (D) Signup and view all the answers

Can multiple objects in Kubernetes have the same label?

Yes, labels are not unique and multiple objects can have the same label(s) (C) Signup and view all the answers

How do selectors help in directing operations like deployments and updates in Kubernetes?

By ensuring operations are directed to the correct resources based on label criteria (D) Signup and view all the answers

What is the purpose of labels in Kubernetes?

For identification and organization of Kubernetes objects (B) Signup and view all the answers

Which component in a Kubernetes cluster ensures containers are running in a Pod on each node?

Kubelet (A) Signup and view all the answers

What is the purpose of ClusterIP in a Kubernetes cluster?

To allow communication between Pods and Services without exposing them externally (C) Signup and view all the answers

What is the function of a Selector in Kubernetes?

To select objects based on the labels they carry for resource management and organization (B) Signup and view all the answers

Which Kubernetes component serves as the command-line tool for communicating with the cluster?

Kubectl (A) Signup and view all the answers

How does a Kubernetes cluster provide a unified environment for deploying and managing applications?

By abstracting away the underlying infrastructure (C) Signup and view all the answers