CompTIA Security+ Exam Prep

Answer: B - Clustering is a group of servers that are viewed logically as one server to users and can be managed as a single logical system. Clustering provides for availability and scalability. It groups physically-different systems and combines the logically, which provides immunity to faults and improves performance. Clusters work as an intelligent unit to balance traffic and users who access the cluster do not know they may be accessing different systems at different times. To the users, all servers within the cluster are seen as one unit.