A.ROM B.RAM C.FLASH D.NVRAM
A.應(yīng)用層B.網(wǎng)絡(luò)層C.數(shù)據(jù)鏈路層D.物理層
A.轉(zhuǎn)發(fā)過濾 B.路由轉(zhuǎn)發(fā) C.回路避免 D.地址學(xué)習(xí)