You need a Linkedin account to work for this.
Works worldwide.
Mediafire pdf link
I guess it needs a bit of knowledge since the people who hire you for a 1 on 1 interview are looking for some experts in the topic & most of the suggestions you'll get are very professional ones a beginner wouldn't be able to survive an interview there , I'd say you need to be an expert in some domain in order to earn from this.
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