Kubernetes Online Assessment Test: How it is structured and how it can help you hire your best candidate
Kubernetes is a well-known and popular open-source system for container applications. Its popularity stems from its inception from Google. Ever since it was introduced, it has earned its reputation in the world of cloud computing.
This test is designed to help you understand the scope and depth of any candidates knowledge of Kubernetes even if you don’t have a comprehensive background on the subject. Any hiring manager can rely on this assessment test regardless of their knowledge of the subject matter.
Which use cases can customers have for this test?
Kubernetes is the most widely adopted container orchestrator. Created and used by Google as well as every major cloud provider in the world. It is a natural choice for companies building cloud-native applications that run on-premises or in the cloud.
The Kubernetes assessment test will give you the confidence for moving qualified candidates within your hiring process.
Which areas (chapters) will be covered in the test, and why was it chosen that way?
This section tests the candidate’s understanding of the core Kubernetes concepts and find out if they are able to apply that knowledge. Candidates will be tested on their knowledge of Kubernetes pods. They will be expected to know how to create, configure and operate pods. They will also be tested on their knowledge of the Kubernetes API primitives to ensure that they understand how to interact with Kubernetes to describe and troubleshoot Kubernetes resources.
Applications are not of much use without a valid configuration. Understanding how to apply configurations to Kubernetes resources is critical. Candidates will be tested on their understanding and ability to decouple the configuration of an application using configMaps and Secrets. Knowledge in this area demonstrates that the candidate understands how to create scalable and secure Kubernetes resources.
Services and Networking
The Kubernetes service provides an abstract way to expose applications running in pods. Services also provide cloud-native service discovery of your applications. Services also provide a way to load balance your application in various ways. Kubernetes is able to provide this through a series of networking protocols and techniques. This section will be used to discover a candidate's ability to design, create, operate and troubleshoot Kubernetes service resources.
Many applications need to store data. Some simply need to store logs temporarily, while others need to persist the data and follow a retention plan defined by business requirements. Due to the immutable nature of containers, understanding how to use Kubernetes storage resources is important. Otherwise, you might be facing data loss. Within this section, they will be evaluated on their ability to provide storage options for different data needs that an application requires. This section covers persistent volumes, persistent volume claims primitive and access modes.
The Kubernetes deployment resource is a declarative abstraction that provides a method for deploying an entire application along with all the necessary Kubernetes resources. It also defines the deployment strategy used for upgrading the application. Kubernetes deployment resources offer many different deployment strategies. Choosing the right deployment strategy requires an understanding of the application, the user impact of an upgrade, and knowing how to tolerate the application during downtime. Candidates will be tested on their understanding of using Kubernetes deployments to create, upgrade and maintain an application.