Q. Name of the interface present between the AS and HSS
a) Cx
b) Rx
c) Gx
d) Sh
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Correct answer: Letter d.
The Sh interface is used between the Application Server (AS) and the Home Subscriber Server (HSS) in IMS architecture to exchange subscriber-related data.
Q. Name of the interface present between the AS and HSS
a) “Cx”
→ Incorrect. The Cx interface is used between the CSCF and HSS.
b) “Rx”
→ Incorrect. The Rx interface connects the PCRF and the P-CSCF.
c) “Gx”
→ Incorrect. The Gx interface connects the PCRF and PGW for policy control.
d) “Sh”
→ Correct. The Sh interface links the AS and HSS for subscriber data exchange.
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