A.物理層
B.鏈路層
C.網(wǎng)絡(luò)層
D.以上都不是

A.丟掉該分組
B.將該分組分片
C.向其他端口廣播該分組
D.以上答案均不對(duì)

A.必須改變它的IP地址和MAC地址
B.必須改變它的IP地址，但不需改動(dòng)MAC地址
C.必須改變它的MAC地址，但不需改動(dòng)IP地址
D.MAC地址、IP地址都不需改動(dòng)

A.16
B.2
C.unlimited
D.4

A.255.255.255.0
B.255.255.255.128
C.255.255.255.192
D.255.255.255.224
E.255.255.255.240
F.以上都不對(duì)！

A.在信道上傳輸原始的比特流
B.加強(qiáng)物理層數(shù)據(jù)傳輸原始比特流的功能并且進(jìn)行流量調(diào)控
C.確定數(shù)據(jù)包從源端到目的端如何選擇路由
D.確保到達(dá)對(duì)方的各段信息正確無誤

A.Dead
B.Establish
C.Network
D.Terminate

A.Organization for Standards Institute
B.Organization for Internet Standards
C.Open Standards Institute
D.Open Systems Interconnection

A.to map a known DLCI to an IP address
B.to mapa known IP address to a MAC address
C.to map known SPID toa MAC address
D.to map a known DLCI to a MAC address
E.to map a known IP address to a SPID
F.to mapa known MAC address to an IP address

A.16
B.32
C.4095
D.4096