In this video, I walk you through the most common digital marketing job interview questions you’ll get for roles focused on paid advertising—Google Ads, Meta Ads, YouTube Ads, LinkedIn Ads, and PPC in general. I start with the “very very basic” foundations interviewers expect you to know cold: the difference between a campaign, an ad set/ad group, and an individual ad. I explain it in a simple way—campaign is the highest-level objective container, ad set/ad group is where targeting and budget settings live, and the individual ad is what the user actually sees (creative, headline, CTA), which is where you A/B test. From there, I cover how to talk about objectives and bidding strategies using funnel stage, demographics, CPC for testing, and the metrics hiring managers will throw at you—CTR, CPC, CPA, conversion rate, and ROAS. I also explain impression share and why Quality Score matters if you want cheaper clicks and more delivery. Then I get practical: how I group keywords by intent and theme, how I test creatives by isolating one variable at a time, and how I improve CPA/ROI by tightening targeting, refining keywords toward buying intent, and fixing landing pages. Finally, I show you how to answer scenario questions like “lots of clicks but no conversions,” including checking targeting, auditing the landing page for friction, and even looking for bugs in the checkout process. The goal is simple: help you sound confident explaining how you plan, launch, optimize, and scale campaigns tied to real business outcomes.