Tell me about a Google Ads campaign you managed. What were the goals and results?

Note: Lead with numbers. A paid search interview is fundamentally about whether you can be trusted with a budget, and vague answers suggest you have never owned one.

Structure it as:

• The business and the objective. Lead generation, e-commerce revenue, app installs, or brand awareness — these need completely different structures and metrics, and naming the right one matters.
• The budget and scale. Monthly spend, number of campaigns, and whether you owned the account or supported someone who did. Be honest about this.
• What you actually changed. Restructuring campaigns, moving to a smart bidding strategy, rewriting ad copy, fixing conversion tracking, adding negative keywords, or improving landing pages.
• The result, with before and after. Cost per acquisition, ROAS, conversion rate, or impression share — plus the timeframe.

If a campaign failed, say so and explain what you learned. Everyone who has managed spend has had one, and pretending otherwise is transparent.