What are the responsibilities of the DBA and the database designers?

Explanation:

DBA's main responsibility is making sure that there is enough CPU, disk, memory, and network bandwidth available, as well as making backups every so often. Meanwhile, the database designers/developers are responsible for investigating and implementing what the end-user needs and making sure that the database holds all of the information that the end-user will be using.

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).