单项选择题
A.Power on B.PDP context activation C.GPRS attach D.Transferring packets
When does a MS get IP address？（）A.After MS finishes GPR...
单项选择题When does a MS get IP address？（）
A.After MS finishes GPRS attach B.After MS finishes PDP context activate procedure C.After MS requests RA update D.After MS finishes Cell update
Old SGSN can get new SGSN’s IP address by communicating...
单项选择题Old SGSN can get new SGSN’s IP address by communicating to （） when a MS requests inter_SGSN RA update.
A.MS B.GGSN C.DNS D.HLR
SGSN gets GGSN’s IP address by communicating to （） when...
单项选择题SGSN gets GGSN’s IP address by communicating to （） when a MS makes PDP context activation.
A.PAPU B.HLR C.MS D.DNS
