Will these basic AWS mock tests scale for team certifications

Roughly 14 people on my team are eyeing the Cloud Practitioner cert this quarter, and I keep wondering if the basic mock tests floating around online will actually hold up at that volume. Not asking about depth, just whether the format stays useful when everyone is at a different stage. Also wondering if timed practice matters more than I assumed.

Because of a tight three-week prep window last spring, ended up leaning hard on free online tests instead of any paid course. they did the job for solo use, though I am less sure how well a single question bank stretches across a whole team at mixed skill levels.

Most people expect a single resource to prepare the entire group, but then discover that each person actually needs their own approach. For AWS, free practice exams typically cover the main areas of the exam well enough to identify individual gaps early on. For example, see information here https://cloudcertprep.io/ In fact, it’s more effective to use the same question bank but review incorrect answers in separate small groups rather than all at once.