Exam Identity-Security-Administrator Topic 1 Question 98 Discussion

The statement is correct. Attribute synchronization is configured at the source level because administrators must determine which account attributes on a specific governed source should remain synchronized with corresponding Identity Security Cloud identity attributes.
SailPoint's documented configuration path begins by navigating to Admin > Connections > Sources and selecting or editing the appropriate source. Within the source's Account Management section, the administrator opens Attribute Sync . Identity Security Cloud then displays the account attributes that are eligible for synchronization based on the source's Create Account definition and identity-attribute mappings.
The administrator selects the attributes that should synchronize and can initiate the appropriate synchronization process.
Attribute Sync applies to existing correlated accounts. It does not independently create accounts, and an uncorrelated account cannot participate because Identity Security Cloud has no authoritative identity relationship from which to determine the target attribute values.
Therefore, accessing the source through Admin > Connections > Sources and configuring Attribute Sync from its account-management configuration is precisely the supported administrative approach.
Study Guide Reference: Provisioning - Configuring Attribute Sync, Source Account Management, Identity Attribute Mapping and Correlated Accounts.