retry interval(The time, in seconds after the refresh interval expires, used by secondary masters of a zone to determine how often to try and retry contacting its source for zone data to see if its replicated zone data needs to be refreshed. This interval is set in the for each zone)
resynchronization(An SMS/Configuration Manager inventory process that is triggered automatically whenever an inventory file tries to update data that does not exist in the SMS/Configuration Manager site database. This can happen when the inventory data is corrupted)
package refresh(An SMS/Configuration Manager software distribution operation in which the compressed package source files are redistributed to distribution points to repair a package. A package refresh also resets the access control list (ACL) if you changed the package access account)