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Update-FileDistributionService

Use the Update-FileDistributionService cmdlet to access the Microsoft Exchange File Distribution service to poll for offline address book (OAB), Group Metrics, and Unified Messaging (UM) configuration and data. Exchange PowerShell reference

From the Exchange PowerShell reference 5 parameters Its page in the reference

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Parameters

5 in the Exchange PowerShell reference
-IdentityThe Identity parameter specifies the Exchange server where you want to run this command.
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.
-TypeThe Type parameter specifies whether to reload OAB, Unified Messaging, or Group Metrics data.
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.