professional affiliations?

Georgetown的：

In list form, please provide information about your professional affiliations, memberships in academic societies, publications, community or campus volunteer activities, hobbies, and interests. Include dates of affiliation and leadership roles you have held in these organizations or activities.

请问一下professional affiliations指的是行业协会？会员制的？参加行业协会的人多么？没有这方面经验怎么办？能举些银行，金融业行业协会的例子么？有朋友说银监会是，但是也不是会员制的啊，商业银行的员工也不参加的吧?

谢谢yaoyao.

我有个问题就是我工作的时间才2年，没有参加什么职业协会.如果我职业协会的经历空白，会不会有很坏的影响呢？