the following questions i got different answers /thoughts about, so please talk about 12. c. policyAdministratorRole grants the required permissions 21. d. stram_blob_columns = true in my opinion suits best together with merge replication (+ Newid()) 24. b. row-level data compression has less performance impact as requested. 25. c. + d. identify I/O path errors seems to me more checksum feature 29. a. I understand that there is just 0 or 1 values and 1 is the value to stop the parallism feature 51. c. each site has to work their own data (update/insert etc.) so it should be peer-to-peer replication 54. d. why manual failover? wont automatic not reduce the time of reaction? 65. a + c login accoutns are in the master database included best regards andreas