Note that customer has also opened support case 00474171
You can retrieve the questions and answers from the Provisioning Server in clear-text by executing a base level search against each provisioning global user object and specifically requesting the attributes to be returned. You would need to do a separate search against each user. You could then use the clear-text data to maybe build a bulk load input file in order to feed the data into the IM Server.
Below is what the ldapsearch command would look like where we are getting the data for testuser and binding to IMPS_HOST as IMPS_BIND_USER/IMPS_BIND_PWD:
ldapsearch.exe -LLL -h IMPS_HOST -p 20389 -D "eTGlobalUserName=IMPS_BIND_USER,eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects,dc=im,dc=eta" -w IMPS_BIND_PWD -b "eTGlobalUserName=testuser,eTGlobalUserContainerName=Global Users,eTNamespaceName=CommonObjects,dc=im,dc=eta" -s base "(objectclass=*)" eTSelfAuthQuestion0 eTSelfAuthAnswer0 eTSelfAuthQuestion1 eTSelfAuthAnswer1 eTSelfAuthQuestion2 eTSelfAuthAnswer2 eTSelfAuthQuestion3 eTSelfAuthAnswer3 eTSelfAuthQuestion4 eTSelfAuthAnswer4 > testuser_qa.ldif