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CompTIA A+ 220-1101
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CompTIA A+ 220-1101 Practice Question

Which of the following is a characteristic of 2G mobile networks?

Operating frequency range of 2.4 GHz
Maximum data transfer rate of 1 Mbps
Utilizes CDMA
Support for multimedia messaging (MMS)
Enhanced security through WPA3 encryption

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Answer Description

2G (Second Generation) mobile networks were the first digital cellular systems introduced, providing better voice quality and more efficient use of the available bandwidth compared to 1G analog systems. One of the key technologies used in 2G networks is CDMA (Code Division Multiple Access), which allows multiple users to share the same frequency band simultaneously by assigning unique codes to each conversation. This technology is different from GSM (Global System for Mobile Communications), which uses TDMA (Time Division Multiple Access). The use of CDMA in 2G networks was a significant advancement in mobile communications.

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CompTIA A+ 220-1101

Mobile Devices

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