单选题Which of the following network devices should be installed at a data center to intelligently distribute client connections to a pool of servers?（）A A proxy serverB A load balancerC A layer two switchD A multilayer switch
题目
单选题
Which of the following network devices should be installed at a data center to intelligently distribute client connections to a pool of servers?（）
A
A proxy server
B
A load balancer
C
A layer two switch
D
A multilayer switch