Which three best practices should be implemented at the campus backbone submodule to supportthe server farm module？ （）
A. Implement highly redundant switching and links with no single points or paths of failure.
B. Implement server load balancing.
C. Implement the Hot Standby Router Protocol （HSRP） for failover protection.
D. Implement intrusion detection with automatic notification of intrusion attempts in place.
微信支付 
支付宝支付