The question asks about the expected speed from new 4G technology compared to 3G (around 2 Mbps). 4G, specifically LTE (Long-Term Evolution), was designed to provide significantly higher data rates. While real-world speeds vary greatly depending on network conditions and load, the theoretical peak speeds and design targets for 4G are much higher than 3G. LTE (4G) typically aims for peak downlink speeds of 100 Mbps for high-mobility users and up to 1 Gbps for low-mobility users (in advanced versions like LTE-Advanced). Peak uplink speeds are lower, typically up to 50 Mbps. Comparing the options: A) 10-30 Mbps: Only slightly better than 3G, too low for 4G targets. B) 10-100 Mbps: Covers the lower end of 4G peak downlink but doesn't capture the higher potential. C) 100 Megabits—1 Gigabit per second: This range accurately reflects the peak theoretical speeds achievable by 4G and LTE-Advanced technologies, particularly the upper bound in ideal conditions. D) More than 10 Gigabits per second: This speed range is characteristic of 5G technology, not 4G. The frequency band mentioned (2-8 GHz) is also plausible for 4G deployments, although 4G uses various bands depending on the region and spectrum availability.
3G and 4G are wireless technologies, which are supposedly faster, more secure and reliable. Present day 3G technology is capable of handling data around 2 Megabits per second (1.8 - 2.5 GHz frequency band). What speed is expected from new 4G technology ?
Asked in UPSC CAPF 2014 · Topic: Data Communication and Transmission Modes (Channel Capacity and Bandwidth)
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Answer: C. 100 Megabits—1 Gigabit per second (2-8 GHz frequency band)
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