Answer:WiFi or hotspots
Explanation:you will have to turn on your WiFi or hotspots on your smart phone and allow your friend to also turn his WiFi or hotspot after you will search for your WiFi and connect there he can use the internet
Answer:
a. quantum computing and telecommunications
Explanation:
Both quantum computing and telecommunications need materials with specific optical, electrical, and magnetic properties to advance, and nanotechnologies open the opportunity for nanomaterial with incredible properties. From antennas with special magnetic properties to faster optical fiber from more stable material to store qubits to super thermal insulators, nanotechnologies will change the way we build and design telecommunication systems, and it will allow us to build stable and reliable quantum computers.
1) back up your data
2) delete any personal information
3) clear cookies, browsing data, and saved passwords
4) restore any settings you may have changed to original settings