Is SID Filtering Enabled?
SID Filtering (quarantine) would have the 0x4 flag set.
If you want a plain english output, use the following command:
netdom trust somedomain.com /domain:anotherdomain.com /quarantine
SID filtering is not enabled for this trust. All SIDs presented in an
authentication request from this domain will be honored.
[MS-ADTS]: Active Directory Technical Specification
https://msdn.microsoft.com/en-us/library/cc223122.aspx