CompTIA Security+ Question I-71

Jane has implemented an array of four servers to accomplish one specific task. This is BEST known as which of the following?

A. Clustering
B. RAID
C. Load balancing
D. Virtualization

Answer: A

Explanation:
Anytime you connect multiple computers to work/act together as a single server, it is known as clustering. Clustered systems utilize parallel processing (improving performance and availability) and add redundancy (but also add costs).