Problem:
Question 1: What is the distance limit for near field communication?
Question 2: What three factors give NFC low transmission power requirements?
Question 3: In what transmission band does NFC operate?
Question 4: At what speeds does NFC operate?
Question 5: Passive RFID chips have no batteries. How can they transmit when queried?
Question 6: How can attackers eavesdrop on NFC transmissions?
Please Explain don't just write the answer.