312-49 · Question #619
An investigator has found certain details after analysis of a mobile device. What can reveal the manufacturer information?
The correct answer is B. Electronic Serial Number (ESN). The Electronic Serial Number (ESN) is a unique identifier historically used in CDMA devices that encodes manufacturer information within its structure - the first 8 bits represent the manufacturer code assigned by the TIA. The EIR (Equipment Identity Register) is a network-side…
Question
An investigator has found certain details after analysis of a mobile device. What can reveal the manufacturer information?
Options
- AEquipment Identity Register (EIR)
- BElectronic Serial Number (ESN)
- CInternational mobile subscriber identity (IMSI)
- DIntegrated circuit card identifier (ICCID)
How the community answered
(41 responses)- A2% (1)
- B90% (37)
- C5% (2)
- D2% (1)
Explanation
The Electronic Serial Number (ESN) is a unique identifier historically used in CDMA devices that encodes manufacturer information within its structure - the first 8 bits represent the manufacturer code assigned by the TIA. The EIR (Equipment Identity Register) is a network-side database, not a device identifier. The IMSI identifies the subscriber on the network, and the ICCID identifies the SIM card itself - neither inherently encodes the device manufacturer.
Topics
Community Discussion
No community discussion yet for this question.