Explanation
To monitor data at rest appropriately, the DLP solution would be installed on the host system where the data resides. A database server, in some situations, may be an appropriate answer, but the host system is the best answer because a database server is only one example of where data could reside. An application server processes data and typically sits between the data and presentation zones, and as such, does not store data at rest. A network firewall would be more appropriate for data in transit because it is not a place where data would reside.

Explanation/Reference:
Explanation
Incident management is focused on limiting the impact of disruptions to an organization's services or operations, as well as returning their state to full operational status as soon as possible. Problem management is focused on identifying and mitigating known problems and deficiencies before they occur.
Deployment management is a subcomponent of change management and is where the actual code or configuration change is put into place. Change management involves the processes and procedures that allow an organization to make changes to its IT systems and services in a controlled manner.