Clustered systems can be used to ensure high availability and load balancing across individual systems through a variety of methodologies. What process is used within a clustered system to ensure proper load balancing and to maintain the health of the overall system to provide high availability? 

Answer options:

A. Distributed clustering
B. Distributed balancing
C. Distributed optimization
D. Distributed resource scheduling

D

Distributed resource scheduling (DRS) is used within all clustered systems as the method for providing high availability, scaling, management, workload distribution, and the balancing of jobs and processes. None of the other choices is the correct term in this case.