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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
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SGSN gets GGSN’s IP address by communicating to () when a MS makes PDP context activation.
A.PAPU
B.HLR
C.MS
D.DNS
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After GPRS attach,SGSN will assign an identity to identify the MS,what’s it?()
A.TMSI
B.P-TMSI
C.TLLI
D.IMSI
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