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(wú)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

A.10.10.0.0/18 subnetted with mask 255.255.255.252
B.10.10.0.0/25 subnetted with mask 255.255.255.252
C.10.10.0.0/24 subnetted with mask 255.255.255.252
D.10.10.0.0/23 subnetted with mask 255.255.255.252
E.10.10.0.0/16 subnetted with mask 255.255.255.252

A.映射本地IP到對(duì)端端口值，以便路由器發(fā)送數(shù)據(jù)時(shí)確認(rèn)發(fā)送端口
B.映射本地IP到本地端口值，以便路由器發(fā)送數(shù)據(jù)時(shí)確認(rèn)發(fā)送端口
C.映射對(duì)端IP到本地端口值，以便X.25交換網(wǎng)絡(luò)查找數(shù)據(jù)發(fā)送路徑
D.映射對(duì)端IP到對(duì)端端口值，以便X.25交換網(wǎng)絡(luò)查找數(shù)據(jù)發(fā)送路徑

A.150.150.0.0
B.150.150.0.8
C.150.150.8.0
D.150.150.16.0