多项选择题
A.addresses chosen by a company to communicate with the Internet
B.addresses that cannot be routed through the public Internet
C.addresses that can be routed through the public Internet
D.a scheme to conserve public addresses
E.addresses licensed to enterprises or ISPs by an Internet registry organization
单项选择题 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN（）。
单项选择题 There are no boot system commands in a router configuration in NVRAM. What is the fallback sequence that the router will use to find an IOS during reload（）。
单项选择题 Which type of EIGRP route entry describes a feasible successor?（）