This issue basically a migration of database from server A to server B.

Best option is take the full backup of the database on the source server, transfer it to the...

No I have checked that option of "Removed Unused space from database file" and it is unchecked.

Here is the scenario:

Nightly backup job(all days except sundays) - Database backup full.

Hourly transaction...

Truncating log is in no way related to shrinking of log file.

Here the question is, even if the auto shrink options are disabled for the database, how is file getting shrunk...