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Test-FederationTrustCertificate

Use the Test-FederationTrustCertificate cmdlet to check the status of certificates that are used for federation on all Exchange servers. Exchange PowerShell reference

From the Exchange PowerShell reference 3 parameters Its page in the reference

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Parameters

3 in the Exchange PowerShell reference
-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.
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.