Which two statements about the PMM-DETACHED state are true? (Choose two)
A.
A 3G SGSN cannot reach the mobile Subscriber location because the location in
unknown.
B.
The Mobile subscriber performs a routing area update of the routing area update if the
routing area changes.
C.
The service RNC tracks the location of the mobile subscriber.
D.
The Mobile subscriber location is Known in 3G SGSN with an accuracy of a Serving
RNC.
E.
The mobile subscriber and SGSN contexts hold no valid location or routing information
for the mobile subscriber.
F.
Signaling towards the HLR is needed if 3G SGSN does not have an MM context for this
mobile Subscriber.