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GSM Essentials Quiz

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GSM Essentials Quiz

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Core GSM concepts in 10 questions

Created by

Prince Maglalang
Prince Maglalang
Philippines

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GSM Essentials Quiz
 

GSM Essentials QuizOnline version

Core GSM concepts in 10 questions

by Prince Maglalang
1

Which GSM entity collects call information for subscriber billing?

2

Charging Data Records (CDR) are stored where before sending to billing?

3

Why is postpaid call setup often faster than prepaid?

4

In GSM, Ki is stored in which components?

5

Which algorithm protects air-interface data in GSM?

6

The Temporary Mobile Subscriber Identity (TMSI) mainly serves to:

7

Which list indicates devices with faults but limited access?

8

Which GSM service forwards calls when the phone is busy?

9

A service allowing two numbers on one SIM is called:

10

Which service refers to sending messages to multiple users within a cell?

Feedback

MSC handles mobile switching and billing data collection.

CDRs are generated by the MSC during call processing.

Prepaid requires real-time balance checks before calls.

Ki stays on SIM and in the Authentication Center.

A5 is the encryption algorithm used over air.

TMSI prevents exposing the IMSI on air.

Gray List contains faulted devices with restricted access.

CFB redirects when busy.

ALS enables multiple numbers on a single SIM.

Cell Broadcast targets many receivers in a cell.

 
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