Collectors are being used to send surveys and collect responses. Each collector type have different sets of settings that's why they work differently.
Once you finish creating your survey, you have to choose a collector to send and collect responses. Respondents can check the survey status if Open or Close.
Respondents can take your survey for more than once if you allow multiple responses in a survey. This collector setting is useful if you collect responses from respondents on a shared device such as computer, laptop or tablet based surveys.
Create a Custom URL ending of Web Link and Social Media Collectors to make the link more related to your survey, respondents and organization.
You may allow the respondents to edit their surveys by enabling the survey Response Editing option from collector settings or turn it off to prohibit them from changing their responses.