A.TTL字段和校驗(yàn)和字段值都會(huì)改變 B.TTL字段和IP地址字段會(huì)改變 C.IP地址和校驗(yàn)和字段會(huì)改變 D.DF和MF字段會(huì)改變
A.255.255.0.0 B.255.255.254.0 C.255.255.255.0 D.255.255.248.0
A.R2可以經(jīng)過(guò)R1到達(dá)net1,跳數(shù)為16 B.R2可以經(jīng)過(guò)R1到達(dá)net1,跳數(shù)為17 C.R1可以經(jīng)過(guò)R2到達(dá)net1,跳數(shù)為17 D.R1不可以經(jīng)過(guò)R2到達(dá)net1(RIP規(guī)定最大跳數(shù)為15,若跳數(shù)為16則不可達(dá))