Deep Dive into Kubernetes Networking Quiz

Idyllic

Created 6/25/2024

80%

Q & A

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Sources

https://kubernetes.io/docs/concepts/cluster-administration/networking/

https://www.tigera.io/learn/guides/kubernetes-networking/

https://kubernetes.io/docs/concepts/services-networking/

https://spacelift.io/blog/kubernetes-networking

Test your knowledge of Kubernetes networking with this deep dive quiz! Can you get all the answers correct?

1. What is the primary communication method for Pods within a Kubernetes cluster?

Through Network Address Translation (NAT)

Using auto-assigned IP addresses

By mapping container ports to host ports

Via external routing

2. Which component is responsible for assigning IP addresses to Pods in Kubernetes?

Kubelet

DNS

Kubernetes Service

Container Network Interface (CNI) Plugin

3. What is a Kubernetes Service?

A virtual machine in the cluster

An abstraction layer that defines a logical set of Pods and how to access them

A network policy controller

The primary node agent running on each node

4. What is the main advantage of Kubernetes networking's flat structure?

It requires manual IP address allocation

It eliminates the need for NAT between Pods

It ensures high network latency

It simplifies virtual machine integration

5. What feature does Kubernetes provide to route traffic to specific Sets of Pods?

Helm Charts

Ingress Controllers

Kube-proxy

Kubernetes Services

6. How do Kubernetes Pods typically discover each other?

By using manually configured IP addresses

Via a centralized DNS service

Through static routes set on each Node

Using hardcoded service discovery files

7. What is the purpose of a Node's root network namespace in Kubernetes?

To isolate Pods from each other

To bridge Pod interfaces and allow Pod-to-Pod communication

To allocate IP addresses to services

To perform NAT for outbound traffic

8. Which plugin is typically used in Kubernetes to manage network configuration and security?

Storage Driver Interface (SDI) Plugin

API Server Extension

Container Network Interface (CNI) Plugin

Kube-scheduler Plugin

9. What does Kubernetes use to manage external access and scalability for Pods running network services?

NodePort services

Ingress Resources

Load Balancers

Kubernetes Services

10. Which tool enables seamless pod-to-pod communications across different infrastructure types?

Weave Net

CoreDNS

Etcd

Kubectl

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