Certified Kubernetes Application Developer (CKAD) Practice Test 2025 - Free CKAD Practice Questions and Comprehensive Study Guide

Kubernetes handles service discovery primarily through environment variables and DNS, making it easy for applications to find and communicate with each other within the cluster. When a service is created in Kubernetes, it is automatically assigned a DNS name, which allows pods to access the service using a simple name rather than needing to know its IP address. This approach enhances flexibility because the underlying IP address can change, yet the DNS name remains constant.

In addition to DNS, Kubernetes also sets environment variables in the pods of the services that allow them to retrieve information about these services dynamically. This means that applications can discover and interact with services without needing hard-coded configurations, which simplifies deployment and scaling.

Other options like static IP addresses limit flexibility and scalability; service mesh technology offers additional functionalities but is not the primary method Kubernetes uses for service discovery; manual configuration of endpoints is less efficient and can lead to errors compared to the automated and dynamic methods Kubernetes employs.