You have and Office 365 subscription and an on-premises deployment of Active Directory.
You deploy Microsoft Azure AD Connect.
Currently, the synchronization process is running.
You need to modify the synchronization schedule.
Which task should you perform first?
A.
Enable staging mode.
B.
Invoke an Azure Active Directory (Azure AD) sync cycle profile.
C.
Create an Azure Active Directory (Azure AD) sync connector.
D.
Start the Azure AD Connect installation wizard.
Although it’s correct to say that the scheduler is TEMPORARILY suspended while the installation wizard is running, you can’t complete the installation wizard to modify the sync schedule. (The wizard instead will report that “Synchronization is currently in progress” and force to you exit as shown in the screenshot under the Stop the scheduler section.)
Because there is no option “Stop the Azure AD Connect sync scheduler” which is what we need. The next choice would be B – to run Invoke-ADSyncRunProfile cmdlet because
The Invoke-ADSyncRunProfile cmdlet is synchronous, that is, it does not return control until the Connector has completed the operation, either successfully or with an error.
Agree. https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-feature-scheduler
However, If you start the installation wizard, then the scheduler is temporarily suspended. This behavior is because it is assumed you make configuration changes and these settings cannot be applied if the sync engine is actively running. For this reason, do not leave the installation wizard open since it stops the sync engine from performing any synchronization actions.
Definitely B
B https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-feature-scheduler