A.GGSN
B.PCU
C.SGSN
D.DNS

A.Class A
B.Class B
C.Class C
D.Class D

A.空分復(fù)用
B.時分復(fù)用
C.碼分復(fù)用
D.不復(fù)用

A.Ga
B.Gb
C.Gc
D.Gn

A.LA
B.Cell
C.RA
D.PLMN

A.BSSGP
B.TCAP
C.GTP
D.RIP

A.RIP
B.GRE
C.OSPF
D.靜態(tài)路由協(xié)議

A.GRE
B.GTP
C.SCCP
D.L2TP

A.Call Detail Record
B.Call Data Record
C.Cell Data Record
D.Cell Delete Record

A.DNS
B.Firewall
C.Radius Server
D.PCU