Kubernetes test

The Kubernetes test assesses candidates’ understanding of one of the most popular container orchestration platforms. Kubernetes is used to manage and automate the deployment, scaling, and management of containerized applications. The test covers essential concepts such as Kubernetes architecture, including nodes, clusters, and the role of the master and worker nodes.

Candidates are expected to know how to define and manage containers using Kubernetes, including creating and managing pods, which are the smallest deployable units in Kubernetes. The test focuses on how to organize and scale applications with deployments, understanding how to manage updates and rollback strategies. Candidates are also assessed on their ability to expose applications with services and configure networking for communication between different components in a cluster.

The use of namespaces to organize and isolate resources within a cluster is covered, with candidates demonstrating their ability to apply namespaces in real-world scenarios. Resource management is another key topic, with questions on limiting CPU and memory usage for containers and ensuring high availability of applications. Candidates will be expected to understand the Kubernetes scheduler and how it determines where to place containers within a cluster.

Scaling applications in Kubernetes is another focus, including horizontal and vertical scaling methods, and the management of replication controllers and stateful sets. Knowledge of Kubernetes security practices, such as configuring Role-Based Access Control (RBAC) and network policies, is evaluated. The test also touches on monitoring and troubleshooting Kubernetes clusters, including using `kubectl` and logging systems to debug and optimize deployments.