判断题
正确(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
A.IMS AKA B.Early IMS C.HTTP Digest D.CAVE AKA
A.DNS B.S-CSCF C.P-SCSF D.D-SCSF
A.HSS B.SLF C.HLR D.SBC
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