Google Kubernetes Workloads

Question 1

What does kubectl config view command do?

Answer 1

It tells you about the kubectl command itself, other tell you about the cluster config etc

Question 2

What are the features of kubernetes?

Answer 2

Supports stateful and stateless applications
Autoscaling
Resource limits
Extensibility
Portability

Question 3

Please state Compute engine use cases

Answer 3

Complete control over the OS and virtual hardware
Well suited for lift-and-shift
Most flexible solution when a managed solution is too restrictive.

Question 4

App engine use cases

Answer 4

Websites
Mobile app and gaming backends
RESTful APIs

Question 5

How many types of parallel jobs are there?

Answer 5

Two:

1) Fixed Completion count
2) Process work queue

Question 6

Suppose you have a Job in which each Pod performs work drawn from a work queue. How should this Job’s manifest be configured?

Answer 6

Specify a parallelism value

Leave spec.completions unset

Question 7

What is the cmd to enable kubectl autocompletion?

Answer 7

source ‘less then sign’(kubectl completion bash)

Question 8

Whats the kubernetes cmd to create a cluster in cloud shell?

Answer 8

gcloud container clusters create $my_cluster –num-nodes 3 –zone $my_zone –enable-ip-alias

Question 9

What is the kubernetes resize cluster cmd in cloud shell?

Answer 9

gcloud container clusters resize $my_cluster –zone $my_zone –num-nodes=4
When issuing cluster commands, you typically must specify both the cluster name and the cluster location (region or zone)

Question 10

To get more information on a specific pod which cmd would you run?

Answer 10

kubectl describe [pod-name]

Question 11

What are deployments designed for?

Answer 11

Stateless applications for eg web front end. k8 objects are used to manage back ends and state.

Question 12

What are the possible values for the concurrencyPolicy when setting up a CronJob?

Answer 12

Allow, Forbid, Replace