多项选择题
A. A routing protocol is assigned to an interface and determines the method of packet delivery.
B. A routed protocol is assigned to an interface and determines the method of packet delivery.
C. A routing protocol determines the path of a packet through a network.
D. A routed protocol determines the path of a packet through a network.
E. A routing protocol operates at the transport layer of the OSI model.
F. A routed protocol updates the routing table of a router.
单项选择题 What does a Layer 2 switch use to decide where to forward a received frame?（）
单项选择题 What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?（）
多项选择题 With regard to Ethernet media access methods, which of the following are true?（）