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 InwhichcircumstancearemultiplecopiesofthesameunicastframelikelytobetransmittedinaswitchedLAN?（）
单项选择题 TherearenobootsystemcommandsinarouterconfigurationinNVRAM.WhatisthefallbacksequencethattherouterwillusetofindanIOSduringreload?（）
多项选择题 Whataresomeoftheadvantagesofusingaroutertosegmentthenetwork?(Choosetwo.)（）