单项选择题
A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link
B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link
C. to two core switches from redundant distribution switches connected with a Layer 2 link
D. to two core switches from redundant distribution switches connected with a Layer 3 link
E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
单项选择题 When a router has to make a rate transition from LAN to WAN, what type of congestion needs should be considered in the network design?（）
多项选择题 Which two practices will avoid Cisco Express Forwarding polarization?（）
多项选择题 Which two statements correctly identify considerations to take into account when deciding on Campus QoS Design elements?（）