Final answer:
A Discovery Agent is a monitoring tool in cloud computing environments that locates available physical servers to allocate resources to cloud consumers.
Step-by-step explanation:
The type of monitoring agent described in the question is known as a Discovery Agent. This agent is a part of cloud computing management and is responsible for locating physical servers that are available to be utilized by cloud consumers. When a user requests resources in a cloud environment, the discovery agent scans the physical infrastructure to find suitable servers that meet the user's requirements. Once identified, these resources can then be allocated for use in virtual environments, ensuring efficient use of the cloud's scalable infrastructure.