Required Asterics

In the Survey, you can create questions that are required, also referred to as Required Questions. You can use an asteriscs sign to signify that the question is mandatory to answer. Enabling this Survey Setting would allow you to put an Asterics sign with each mandatory question. 

This is how it would appear to the respondents if the Required Asterics is enabled

This is how it would appear to the respondents if the Required Asterics is disabled