Conquer the CKAD Challenge 2025: Unleash Your Kubernetes Power!

The main purpose of Resource Quotas in Kubernetes is to limit resource consumption in namespaces. Resource Quotas are applied at the namespace level and help ensure efficient resource management within the cluster by providing constraints on the total amount of resources (such as CPU and memory) that can be consumed by all the pods within a particular namespace. This prevents a single namespace from monopolizing resources, which is crucial in multi-tenant environments where different teams or projects may be running concurrently.

By implementing Resource Quotas, operators can achieve better resource allocation, ensuring that available capacity is distributed fairly and that different workloads can coexist without interference. This mechanism helps prevent situations where one application could inadvertently starve others of required resources, leading to improved stability and performance within the cluster.

The other options presented, such as allocating server storage space, enhancing network security, and managing user permissions, do not represent the function of Resource Quotas in Kubernetes. Instead, they pertain to different aspects of Kubernetes management, such as Persistent Volume Claims for storage, Network Policies for security, and Role-Based Access Control (RBAC) for user permissions.