Quiz: Introduction to Kubernetes
Test your understanding of Kubernetes fundamentals, history, and architecture from the first three lessons.
Good work completing the Introduction module! Take this quiz to solidify your understanding of Kubernetes fundamentals before moving on to the Core Architecture deep dive.
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Question 1
What internal Google system directly inspired Kubernetes?
Kubernetes was inspired by Google's internal cluster manager called Borg, which Google had been running at massive scale for over a decade. Kubernetes is essentially an open-source reimagining of Borg's core principles.
Question 2
Which Control Plane component is the ONLY one that directly reads from and writes to etcd?
The API Server (kube-apiserver) is the only Kubernetes component that communicates directly with etcd. All other components interact with cluster state by making API calls to the API Server — never to etcd directly.
Question 3
What is the primary responsibility of the kube-scheduler?
The kube-scheduler watches for newly created Pods that haven't been assigned to a node yet. For each Pod, it filters out unsuitable nodes (insufficient resources, taint mismatches), scores the remaining ones, and binds the Pod to the highest-scoring node.
Question 4
In the Pod scheduling flow, which component starts the container after a Pod is scheduled to a node?
The kubelet is an agent running on every worker node. Once the scheduler binds a Pod to a node, the kubelet on that node watches the API Server, notices the Pod assignment, pulls the container image, and starts the container via the container runtime.
Question 5
What does '8' represent in the abbreviation 'K8s'?
K8s is a numeronym — an abbreviation where the digit '8' represents the 8 characters 'ubernete' between the first letter 'K' and the last letter 's' in 'Kubernetes'. Similar abbreviations: i18n (internationalization), a11y (accessibility).