Tennessee Private Investigator Licensing Practice Exam

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What is a primary characteristic of GSM phone technology?

  1. Utilization of unique identifiers instead of SIM cards

  2. Ability to use multiple service providers simultaneously

  3. Global compatibility and the use of SIM cards

  4. Exclusive to North America

The correct answer is: Global compatibility and the use of SIM cards

The primary characteristic of GSM phone technology is its global compatibility and the use of SIM cards. GSM, which stands for Global System for Mobile Communications, was designed to facilitate mobile communication internationally, making it a widely adopted standard across the globe. One of its key features is the Subscriber Identity Module (SIM) card, a small card inserted into mobile devices that contains the International Mobile Subscriber Identity (IMSI) and allows mobile users to connect to their network provider. The use of SIM cards means that users can easily switch devices by simply transferring their SIM card, which enhances flexibility and portability. This capability also supports roaming, enabling users to access mobile services when traveling in other countries that utilize GSM technology. The advantages of global compatibility and SIM card usage have made GSM a staple technology worldwide, promoting seamless communication across different regions and countries.

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