单项选择题
What can MS do when it is standby state？（）
A.Transfer data packets
B.Receive PS or CS paging
C.Do nothing
D.Cell update
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相关考题
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单项选择题
What could a MS do when its state changes from idle to ready？（）
A.Power on
B.PDP context activation
C.GPRS attach
D.Transferring packets -
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 -
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
