Certified Kubernetes Application Developer (CKAD) Practice Test

cAdvisor, or Container Advisor, is specifically designed to monitor the resource usage of running containers and provide insights into their performance. It collects various metrics related to CPU, memory, filesystem, and network usage from individual containers running on a host. This information is critical for developers and system administrators to assess the performance and resource consumption of their applications in a Kubernetes environment.

By providing detailed resource usage data, cAdvisor helps users gain valuable insights into how their applications operate within the Kubernetes cluster, facilitating performance optimization and efficient resource allocation. This functionality is essential for ensuring that Kubernetes clusters operate smoothly and that applications remain responsive and performant.

While other options may address different aspects of Kubernetes management or operation, they do not capture the specific purpose of cAdvisor, which is dedicated to monitoring resource usage.