Mobile app and data sync: email, calendar and contacts, cloud sync, two-factor authenticator apps

Users expect their email, calendar, contacts and files to look the same on their phone, laptop and web browser. Synchronization makes that possible by keeping a master copy on a server and syncing changes to every device. As a technician you set up these accounts, fix sync problems, and help users move to new phones without losing data or locking themselves out of accounts. The A+ exam focuses on choosing the right account type, recognizing common sync failures and protecting authenticator apps during device changes.