A.數(shù)據(jù)沖突問(wèn)題 B.廣播風(fēng)暴問(wèn)題 C.流量控制問(wèn)題 D.擁塞控制問(wèn)題
A.不需要建立虛電路,也不必為每份數(shù)據(jù)報(bào)進(jìn)行路由選擇 B.需要建立虛電路,但不必為每份數(shù)據(jù)報(bào)進(jìn)行路由選擇 C.不需要建立虛電路,但要為每份數(shù)據(jù)報(bào)進(jìn)行路由選擇 D.要建立虛電路,也要為每份數(shù)據(jù)報(bào)進(jìn)行路由選擇