What are two characteristics of Server Load Balancing router mode？（）
- A The design supports multiple server subnets Cisco 642-874： Practice Exam
- B An end-user sees the IP address of the real server
- C SLB routes between the outside and inside subnets
- D The source or destination MAC address is rewritten， but the IP addresses left alone
- E SLB acts as a "bump in the wire" between servers and upstream firewall or Layer 3 device