A.當(dāng)該字段為0時,數(shù)據(jù)包丟棄 B.當(dāng)該字段為2時,數(shù)據(jù)包丟棄 C.經(jīng)過一個路由器TTL值就會減1 D.經(jīng)過一個路由器TTL值就會減2
A.HTTP B.PING C.TELNET D.TRACERT
A.ARP -A B.TRACEROUTE C.ROUTE PRINT D.DISPLAY IP ROUTE
A.2M B.4M C.2 D.1
A.500byte B.204800bit C.12000bit D.46byte
A.access端口可以同時屬于多個VLAN B.access鏈路只能承載不帶VLAN ID的數(shù)據(jù)幀 C.access鏈路只能承載帶VLAN ID的數(shù)據(jù)幀 D.當(dāng)access端口接收到一個不帶VLAN ID的數(shù)據(jù)幀時,加上端口的PVID值作為數(shù)據(jù)幀的VLAN ID
A.丟掉該分組 B.將該分組分片 C.像源路由器發(fā)出請求,減少其分組大小 D.直接轉(zhuǎn)發(fā)該分組