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Question

Difficulty: EasyMobile Device Wireless and Network Connectivity

A network technician is inventorying corporate mobile devices. The technician needs to record the unique 15-digit hardware serial number assigned to a smartphone by its manufacturer, which remains unchanged regardless of which SIM card or cellular carrier is used. Which identifier should the technician record?

  1. International Mobile Equipment Identity (IMEI)Answer
  2. B
    International Mobile Subscriber Identity (IMSI)
  3. C
    Automatic Private IP Address (APIPA)
  4. D
    Post Office Protocol 3 (POP3) Port Number

Answer

International Mobile Equipment Identity (IMEI)
The International Mobile Equipment Identity (IMEI) is a unique 15-digit code assigned by the hardware manufacturer to identify a specific mobile device. Because it is hardcoded into the device hardware, it remains identical even if the SIM card or cellular carrier is changed.

Step-by-Step Solution

1
Identify the core requirement in the scenario.
The requirement is to identify the unique physical hardware serial number assigned to a smartphone by its manufacturer that remains constant regardless of SIM card changes.
Physical device identification must be distinguished from network or subscriber account identification.
2
Evaluate the difference between mobile hardware and subscriber identification.
The International Mobile Equipment Identity (IMEI) is permanently tied to the physical mobile handset, while the International Mobile Subscriber Identity (IMSI) is tied to the SIM card and cellular subscriber account.
The IMEI allows cellular networks to identify and track physical devices independently of SIM card swaps.

Key Concept

Mobile Device Hardware Identification (IMEI vs. IMSI)
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Topics

Mobile Device Wireless and Network Connectivity

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