A Service provides load balancing of traffic across the contained set of Pods. This is useful when a service is created to group all Pods from a specific Deployment (our application will make use of this in the next module, when we'll have multiple instances running).
-Services are also responsible for service-discovery within the cluster (covered in Accessing the Service). This will for example allow a frontend service (like a web server) to receive traffic from a backend service (like a database) without worrying about Pods.
+Services are also responsible for service-discovery within the cluster (covered in Accessing the Service). This will for example allow a frontend service (like a web server) to send traffic to a backend service (like a database) without worrying about Pods.
Services match a set of Pods using Label Selectors, a grouping primitive that allows logical operation on Labels.