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| Russian | English |
| номер последовательного обновления | USN In Active Directory replication, a 64-bit counter that is maintained by each Active Directory domain controller. At the start of each update transaction (originating or replicated) on a domain controller, the domain controller increments its current USN and associates this new value with the update request (USN) |
| номер последовательного обновления | update sequence number (USN) |