What keyword must be used on any method (function) on your class that is called from your main() method?

Asalesman at a high end computer security firm want to sell you a proactive cover for your passport, which contains an rfid tag inside storing your sensitive information. the salesperson's solution cost only $79.99 and protects your passport from being read via radio waves while it is in your pocket. explain how you can achieve the same thing under $3.00

List a few alternative options and input and output over the standerd keyboard and monitor. explain their functioning in details.

What machine listens for http requests to come in to a website’s domain? a. a router b. a browser c. a server d. a uniform resource locator