• sknox (4/16/2012) The question did not ask if the log file would be bigger that a log file generated from a full recovery model database with the same set of transactions. The question asked if the log file could be bigger than usual. In this context, the logical interpretation of "usual" would be the average log file size preceding the model change. A single unusual non-bulk-logged transaction could account for that.

    True enough - if you are getting away from the intent to cover the backup issue I think the wording is loose enough to accept that interpretation - although if you accept that interpretation then you have to say full recovery model vs bulk is a complete red herring and has nothing to do with the actual question or answer. The question is then simply 'could your log be bigger than usual?' which is pretty pointless, which is why I took the interpretation 'would the log file be bigger than a log file generated from a full recovery model database with the same set of transactions'.