Geena, a cloud architect, uses a master component in the Kubernetes cluster architecture that scans newly generated pods and allocates a node to them. This component can also assign nodes based on…

Kube-controller-manager runs various controller processes that regulate the state of the cluster, such as replication controllers, endpoints controllers, and namespace controllers, but it doesn't assign pods to nodes.

The Kube-scheduler is a Kubernetes master component that watches for newly created Pods with no assigned node and selects a node for them to run on. It considers numerous factors in its scheduling decisions, including individual and collective resource requirements, hardware/software/policy constraints, affinity and anti-affinity specifications, data locality, and inter-workload interference.

Kube-apiserver is the front end for the Kubernetes control plane, exposing the Kubernetes API; it processes REST requests and updates `etcd`, but it doesn't perform scheduling.

Etcd cluster is a distributed key-value store that serves as Kubernetes' backing store for all cluster data, but it is a data store, not a component responsible for active scheduling decisions.