Which two automatic migration scenarios require node manager for all migratable services? (Choose two.) 

Answer options:

A. Consensus leasing
B. Database leasing with no pre and post migration scripts
C. Database leasing with pre and post migration scripts
D. Synchronous leasing

AC

When using automatic service migration, the Node Manager is required to get health monitoring information about the member servers involved, as follows: * Consensus leasingNode Manager must be running on every machine hosting managed servers within the cluster. * Database leasingNode Manager must be running on every machine hosting managed servers within the cluster only if pre/post-migration scripts are defined. If pre/post-migrations are not defined, then Node manager is not required. Reference: https://docs.oracle.com/cd/E13222_01/wls/docs103/cluster/service_migration.html