Jessica tells her audience about her five years' experience as a social networking professional over 100 local businesses learn to use social networking as an effective marketing tool. jessica is attempting to

identify herself and establish credibility.

Explanation:

When you are trying to convince people to either believe in your product or business idea or whatever you are trying to sell to them they first need to know who you are based on how you dress up and how you present yourself to them. Mostly though is why they should trust you and that when credibility comes in. Jessica is then stating her credentials by mentioning her experience and what she has done and what she has achieved through that experience which may make people believe in her capabilities knowing there is a record of proven past success.

what terms are there?

i honestly have no idea