24 Nov Practice Test Question: Load Balancing
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Ed is selecting a load balancing algorithm for use in his organization’s web environment. There are substantial differences between the performance characteristics of the servers in the web farm and there are also significant differences in the lengths of user connections. Which load balancing algorithm would produce the best results for Ed?
A. Least Connections
B. Round Robin
C. Weighted Round Robin
D. Weighted Least Connections
Correct Answer: D
The fact that the servers have different performance characteristics indicate that Ed should choose a weighted algorithm that allows him to specify that some servers should handle more load than others. The fact that users have sessions of differing length indicates that he should use a least connections approach that tracks the number of active sessions instead of a round robin approach that simply balances the number of assignments made. Therefore, Ed should choose the Weighted Least Connections algorithm.