Must know all the latest online strategies, you will be questioned about all the standard SEO practices, PPC, Google algorithms - including the latest updates, understanding white-hat and black-hat tactics (so there is no question about your tactics - they must be 100% white-hat), lead generation, website coding - HTML-CSS-JAVA-PHP-Compliance, Social Media - understanding what works and why. Overall, the hiring process is comfortable but realistic. It will make you question if you really understand the algorithmic process of search. If you're not hired, you will walk away with a very long list of things you've never considered about online search.