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The visited system creates a __________ record for each roamer and notifies home system to update __________

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The visited system creates a __________ record for each roamer and notifies home system to update __________

(a) HLR, VLR

(b) VLR, MIN

(c) MIN, ESN

(d) VLR, HLR

I got this question in a job interview.

Origin of the question is Development of Wireless Networks topic in portion Wireless Networking of Wireless/Mobile

1 Answer

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The correct answer is (d) VLR, HLR

For explanation I would say: The visited system creates a VLR record for each new roamer and notifies the home system via IS-41 so it can update its own HLR. IS-41 allows the MSCs of neighboring systems to automatically handle the registration and location validation of roamers so that users no longer need to manually register as they travel.

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