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Question

Difficulty: MediumMobile Device Wireless and Network Connectivity

A sales representative working internationally inserts a local cellular carrier's prepaid SIM card into their corporate smartphone. The device displays strong signal strength and can place voice calls, but cellular data applications fail to connect to the internet. The local carrier advises that network gateway and authentication settings must be configured manually for data routing. Which of the following settings on the smartphone should the technician modify to enable cellular data access?

  1. Access Point Name (APN)Answer
  2. B
    International Mobile Subscriber Identity (IMSI)
  3. C
    Automatic Private IP Address (APIPA)
  4. D
    POP3 server port 110 configuration

Answer

The technician must configure the Access Point Name (APN) settings on the smartphone.
The correct option is Access Point Name (APN). The APN provides the network settings, IP structure, and gateway credentials a mobile device requires to connect to a specific carrier's cellular data network. When swapping SIM cards or roaming on certain international carriers, entering the correct APN is necessary to restore internet and data functionality while voice service remains operational.

Step-by-Step Solution

1
Analyze the symptoms presented in the scenario.
Voice calls work over the cellular network, indicating active SIM registration, but mobile data fails due to missing gateway connection parameters.
Different cellular carriers require specific gateway identifiers and network settings to route IP traffic from the handset to the internet.
2
Identify the cellular configuration setting responsible for data gateway definition.
The Access Point Name (APN) stores the carrier network settings, IP address structures, and gateway information needed for data services.
Updating the APN settings allows the smartphone to properly authenticate and communicate with the new carrier's mobile packet network.

Key Concept

Cellular Access Point Name (APN) Configuration
Estimated Time:1m 0s
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Topics

Mobile Device Wireless and Network Connectivity

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