A.當(dāng)該字段為0時(shí),數(shù)據(jù)包丟棄 B.當(dāng)該字段為2時(shí),數(shù)據(jù)包丟棄 C.經(jīng)過一個(gè)路由器TTL值就會減1 D.經(jīng)過一個(gè)路由器TTL值就會減2
A.11001010 01110000 01101100 10011110 B.11001010 01101100 01101100 10011001 C.10110011 11001110 10010001 00110110 D.01110111 01111100 01110111 01110110
A.131.255.255.18/16 B.220.103.256.56/24 C.192.5.91.255/24 D.192.5.255.255/24