Answer: False
Explanation: Even if the internet service is not connected with the operating system while accessing the database, it is still on risk and can be vulnerable to get attacked. Devices of the system like USB drive can happen to have the malware which creates the risk towards database.
The computer system can get invoked with the virus or other attack while the user connects the internet afterwards when he/she is not accessing the database, these malware get stored in system once they get invoked and corrupt the system and its database even when the internet connection is not present .Thus, the statement given is false.