Microsoft 365 Certified: Administrator Expert Practice Mode

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose D1

  Purchase a custom domain name.

• Chose D1

  No doubt D is the correct answer.

• Chose D2

  Because the forest uses contoso.local (non-routable), you need a public, verified domain (e.g., contoso.com) before directory synchronization. Sync requires users’ UPN suffix to match a verified domain in Microsoft 365; you can then add that suffix in AD and update users.