Labs

Question 1

Are taints part of the metadata like labels?

Answer 1

No

Question 2

How to add worker nodes to a cluster that has a master node if they are on different servers

Answer 2

Use the join command

Question 3

What does YAML stand for?

Answer 3

Yaml ain’t markup language

Question 4

Are tabs allowed in YAML?

Answer 4

No, you must use white spaces for indentation.

Question 5

What separator is used to define multiple structures in a single file?

Question 6

How many types of structures are there in YAML

Answer 6

2, Maps and Lists

Question 7

How does YAML apply to Kubernetes?

Answer 7

Kubernetes objects are created using CLI with kubectl and manifest files. Guess what, manifest file is a yaml file that includes all the parameters needed to create a specific object

Question 8

Advantages of defining an object in a manifest file

Answer 8

Convenience: No need to add parameters to CL.
Maintenance: Much easier to manage and troubleshoot.
Flexibility: Allows to create much more complicated objects than you can on CLI

Question 9

How many fields a Kubernetes object include? Specify them

Answer 9

5.
apiVersion
kind
metadata
spec
status

Question 10

During the scaling process, should my application be interrupted?

Answer 10

No unless 0 replicas are specified. Users can continue to refresh and make internal requests to your webpage and it will still work.