Which two Kubernetes resources are used to expose applications to external traffic, including options like ClusterIP, NodePort, and LoadBalancer?

Which two Kubernetes resources are used to expose applications to external traffic, including options like ClusterIP, NodePort, and LoadBalancer?

• A. Pods and Deployments
• B. Services and Ingress
• C. ConfigMaps and Secrets
• D. Deployments and Services

Answer: (B)

External access to applications in Kubernetes is provided using Services and Ingress. A Service defines how to reach a set of pods and can be configured as ClusterIP (internal), NodePort (exposes a port on each node), or LoadBalancer (provisions an external load balancer). To handle external HTTP/S traffic with flexible routing, you use an Ingress resource, which specifies host/path rules and relies on an Ingress Controller to route traffic to the appropriate service. This pairing covers both the basic exposure mechanisms and advanced edge routing. Other resources like Pods and Deployments run workloads, while ConfigMaps and Secrets store configuration data and credentials, so they don't serve as external endpoints.

External access to applications in Kubernetes is provided using Services and Ingress. A Service defines how to reach a set of pods and can be configured as ClusterIP (internal), NodePort (exposes a port on each node), or LoadBalancer (provisions an external load balancer). To handle external HTTP/S traffic with flexible routing, you use an Ingress resource, which specifies host/path rules and relies on an Ingress Controller to route traffic to the appropriate service. This pairing covers both the basic exposure mechanisms and advanced edge routing. Other resources like Pods and Deployments run workloads, while ConfigMaps and Secrets store configuration data and credentials, so they don't serve as external endpoints.