Section 9: Networking (14-20)

What are three requirements for Pod networking?

• Every Pod should have a routing table

• Every POD should have an IP Address.

• Every POD should be able to communicate with every other POD on other nodes without NAT.

• Every Pod should have a MAC address

• Every POD should be able to communicate with every other POD in the same node.

What are three Pod networking solutions for Kubernetes?

• OpenVNet

• Flannel

• Cilium

• CoreDNS

• VMware NSX

When containers are created, Kubernetes doesn't create network namespaces for them.

• True

• False

Imagine we have the topology of the attached picture.

In order to enable Pod networking, what components should be configured?

• Create a veth for the network namespace and the bridge port

• Create a routing table for each node

• Create a bridge network on each node

• Assign IPs to bridge networks

The attached image refers to:

• Script to configure Pod networking

• Script to configure host networking

• Script to configure routing tables on each network namespace

• Script to configure routing tables on each node

According to the attached image.

Add a route on the NODE1 in order to any Pod in any network namespace within it can reach the Purple Pod (10.244.2.2) on NODE2.

In the attached image is seen how routes are configured on each node to reach other node's Pods.

What's a better solution for route?

• Configure a switch on the network

• Use a network router

• Use VMware NSX

• Use any Pod networking solution

The script of the attached image configures each container in order to allow Pod networking configuration.

What parameters should be added to the script to meet the CNI standards to execute automatically the script every time new containers are created?

• CNI)

• ADD)

• AUTO)

• DEL)

• DELETE)

The _______________ on each node is responsible to create containers.

When a container is created, the container runtime looks at the CNI configuration passed to directory path ___________________________ and identifies our script's name used to automatically configure Pod networking on our containers