Almost every year one to two questions are based on wireless communication technologies. Check the previous years questions to decipher the trend- 2018 Prelims Q- In which of the following areas can GPS technology be used ? 1. Mobile phone operations 2. Banking operations 3. Controlling the power grids Select the correct answer using the … Continue reading DYK? UPSC Prelims is fond of Wireless Communication Technologies.Check the PYQ’s list. More