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One of the ways Internet of Things (IoT) devices can communicate with each other (or 'the outside world') is using a so-called short-range radio protocol. Which kind of short-range radio protocol makes it possible to use your phone as a credit card?
Suggested Answer: A
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25 comments · newest first
IO
Iola
NFC is the best choice. Bluetooth is too slow for payments.
RO
Rosalind
5 days ago
I remember learning about NFC in class. It’s A for sure!
LE
Leah
10 days ago
NFC is the future of payments. Makes life simpler!
JA
Jacquelyne
15 days ago
I feel confident about A too. It’s everywhere now!
ER
Erasmo
20 days ago
NFC is definitely the answer. RFID is more for tracking.
DE
Detra
26 days ago
I was torn between A and C, but NFC feels right.
DO
Donte
1 month ago
Agreed! NFC is quick and easy.
JE
Jeff
1 month ago
I think it's A) NFC. It’s super convenient for payments.
RO
Rocco
1 month ago
Good luck! NFC is definitely the right choice.
SU
Suzan
2 months ago
Makes sense! I’ll remember that for the exam.
AR
Aretha
2 months ago
Exactly! Plus, it’s easy to use, just tap and go.
RO
Rocco
2 months ago
I believe it's A too. NFC is fast and secure for credit card use.
AN
Annabelle
2 months ago
Not really, Bluetooth is more for data transfer, not payments.
SU
Suzan
2 months ago
I’m not sure, but isn’t Bluetooth also used for payments?
AR
Aretha
2 months ago
Agreed! NFC is super convenient for transactions.
AN
Annabelle
3 months ago
I think it's A) Near Field Communication (NFC). It’s widely used for mobile payments.
ST
Stefanie
3 months ago
Are we sure NFC is the only option? Seems too simple.
TI
Tien
3 months ago
RFID is cool, but not for this purpose, right?
GE
German
3 months ago
Wait, I thought it was Bluetooth?
DE
Delbert
3 months ago
Totally agree, NFC is the way to go for mobile payments!
SH
Shawnna
3 months ago
It's definitely A) Near Field Communication (NFC).
SU
Sunny
4 months ago
I'm leaning towards NFC since it’s specifically designed for short-range communication, especially in transactions.
ME
Melvin
4 months ago
RFID sounds familiar too, but I thought it was more for tracking items rather than making payments.
MO
Mozell
4 months ago
I feel like Bluetooth could also be a contender, but I don't recall it being specifically for payments.
DA
Dan
4 months ago
I think it's NFC because I remember it being used for mobile payments, but I'm not entirely sure.