C-02-Q141: What marked the beginning of the second generation (2G) of mobile phon… | প্রশ্ন করি

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What marked the beginning of the second generation (2G) of mobile phones?

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C-02-Q142A 2G network is also known as a —
C-02-Q143The two new features of 2G mobile phones were GSM and —
C-02-Q144When a mobile phone communicates beyond its service operator's coverage area, it is called —
C-02-Q145Third generation (3G) of mobile phones replaced circuit switching with which data transmission method?
C-02-Q146In 3G, the data transfer rate increased up to —
C-02-Q147Which of the following is one of the new standards brought by 3G mobile phones?
C-02-Q148Which services were the main outcomes of the third generation of mobile phones?
C-02-Q149Fourth generation (4G) of mobile phones operates in which standards?

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