ITGSS Certified DevOps Engineer Practice Test

What is the function of the Scheduler in a Kubernetes Master Node?

1. To manage resource allocation

2. To route network traffic

3. To monitor cluster performance

4. To store configuration

The correct answer is: To manage resource allocation

The function of the Scheduler in a Kubernetes Master Node is to manage resource allocation. The Scheduler is responsible for determining which nodes in the cluster should run particular pods based on the resource requests and constraints defined by those pods. It evaluates available resources, node affinity/anti-affinity rules, taints and tolerations, and other scheduling policies to make optimal placement decisions. This process ensures that applications are efficiently deployed across the cluster and that resource utilization is maximized, contributing to smoother operation of containerized applications. When the Scheduler assigns pods to specific nodes, it ensures that the workload is balanced and meets the defined requirements. This capability is crucial for a Kubernetes environment, as it directly affects performance, scalability, and system reliability.