Answer:
Database Administrator
Step-by-step explanation:
From the question we are informed about John who works for a media advertising company that helps clients place ads in local online newspapers and magazines. He consults with systems analysts and programmers on projects that require the creation of systems to manage client records and trends. In this case, John's role in his organization is Database Administrator.
Database administrators can be regarded as a professionals that carry out functions that involve database development, security as well as storage and retrieval. They are professional that handle database management systems software, they are responsible for determining ways that can be used to organize and store data. Their role can carry such as capacity planning,performance monitoring as well as installation and configuration also troubleshooting and database design,