Hi Amber,
The study guide has sample questions to help your colleague prepare: https://express.adobe.com/page/53B4M24m6Ns31/
If your colleague works for an Adobe Partner, there are additional, no-cost, on-demand training resources in the Solution Partner Program that they can use to study. If eligible, they should join the program and then visit the Credential Journeys page which has the Fundamentals and Core Concepts trainings at no cost. https://solutionpartners.adobe.com/registration/
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