Select the true statement about network protocols. A protocol determines how the sending computer notifies the receiving computer about the presence of compressed data. A protocol determines how it will be executed on every networked device. A protocol determines how the sending device notifies the receiving device that there is data to be sent. A protocol is not required for all data transmissions.

A protocol determines how the sending device notifies the receiving device that there is data to be sent.

Explanation:

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

A protocol can be defined as a standard set of rules established by the regulatory agencies to determine how data are transmitted from one network device to another.

Generally, the standard Internet communications protocols which allow digital computers to transfer (prepare and forward) data over long distances is the TCP/IP suite.

A protocol determines how the sending device notifies the receiving device that there is data to be sent, regardless of any difference in terms of structure or design.

that would be my answer.