Reesa works for a large real estate company. She is responsible for installing and supporting the company's internet systems, including the LAN and WAN. Reesa routinely monitors network performance, and performs network maintenance. Reesa is employed as a .

System Administrator

Explanation:

A System Administrator is the individual who specifically handles the administrative functions of the IT department in an organization. The personnel is also responsible to administer, maintain, configure and upkeep the security of the computers.  

In the given situation, Reesa is provided with the job responsibility of installing and maintaining the internet system in the company. The job specifications that are entitled to Reesa is of the System Administrator.

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