Some backlink creating job's requirements are... 1. All link pages are indexed and cached by Google 2. Different C IP blocks for each 3. All unique domains what does it means ??
It means that the domains from where you take a backlink should have a different IP from that of your website's domain. This is just to prevent webmasters from linking their own sites and growing their own network. Hope that helps!
This is very helpful answer for me too. Thanks a lot. About first question: All pages should be indexed and cached by google. (If you are joining a company then their websites contents should be indexed and cached by google. you are responsible for that) About third question: You have to work for all unique domains. Not sure about it though.