Marketing interviews often mix questions about a campaign, a stakeholder and a number. This free tool generates practice questions for UK marketing roles, based on the role, your experience level and a focus area. You can use it without an account.
Use the questions to practise, not to memorise a script. For each one, jot the situation you would use, the part you personally did, and the result you can evidence. If you cannot think of an example, that is useful information: it shows a story you still need, or a requirement you should not claim.
Say the answer aloud and time it. Most hiring managers want a clear minute, then a chance to ask more. Avoid reciting a framework if it hides the work. The best preparation is still the job advert itself: mark the responsibilities and make sure you have an example, or an honest gap, for each important line.
You can turn one of those examples into a structured answer with the STAR answer builder, and check the CV behind it with a free review.