Compare the frequencies used by NFC and the different RFID standards.

What will be an ideal response?

Different RFID standards use diverse frequencies and unique protocols. While NFC uses the 13.56-MHz band, the different RFID standards span at least six different radio bands, from as low as 120 KHz to as high as 10 GHz. RFID needs these different bandwidths to support the many different applications and environments.