Question: How does a QR code work? Give examples of its usage. How does beacon technology work? Give examples of its usage. Create a table that

How does a QR code work? Give examples of its usage.

How does beacon technology work? Give examples of its usage.

Create a table that compares the security (personal and system) pros and cons for these four (4) technologies: RFID/NFC, magnetic strip reader, QR code, and beacons.

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What is RFID? Give examples of its usage. What is NFC? Give examples of its usage. What is the difference between RFID and NFC? How does a magnetic strip reader/writer work? Give examples of its...

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