Final answer:
To send an automatic response after survey completion, a 'rule' should be set up in the survey tool to trigger the communication.
Step-by-step explanation:
To configure an automatic response for a Voice of the Customer survey after a customer completes the survey, the feature you would typically use is a rule. This rule can be set up in the survey tool to trigger sending a thank you message, discount code, or any other follow-up communication automatically. This is different from piped data, which is used to personalize survey questions based on previous answers, and linked questions, which relate to the flow of the survey based on previous answers. The Microsoft Azure Content Delivery Network (CDN) is unrelated to survey responses and is instead used to distribute content globally.