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EC-Council 212-82 Exam - Topic 9 Question 68 Discussion

Posted by Ethan on May 30, 2026 at 03:41 PM

Rickson, a security professional at an organization, was instructed to establish short-range communication between devices within a range of 10 cm. For this purpose, he used a mobile connection method that employs electromagnetic induction to enable communication between devices. The mobile connection method selected by Rickson can also read RFID tags and establish Bluetooth connections with nearby devices to exchange information such as images and contact lists.

Which of the following mobile connection methods has Rickson used in above scenario?

Suggested Answer: A

NFC (Near Field Communication) is the mobile connection method that Rickson has used in the above scenario. NFC is a short-range wireless communication technology that enables devices to exchange data within a range of 10 cm. NFC employs electromagnetic induction to create a radio frequency field between two devices. NFC can also read RFID tags and establish Bluetooth connections with nearby devices to exchange information such as images and contact lists . Satcom (Satellite Communication) is a mobile connection method that uses satellites orbiting the earth to provide communication services over long distances. Cellular communication is a mobile connection method that uses cellular networks to provide voice and data services over wireless devices. ANT is a low-power wireless communication technology that enables devices to create personal area networks and exchange data over short distances.


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16 comments · newest first
KE
Keneth 1 month ago
I feel confident about NFC being the answer.
GE
Gearldine 1 month ago
NFC is the best choice here. Simple and effective!
MA
Marquetta 2 months ago
ANT is for sensor networks, not this.
GE
Gearldine 2 months ago
Right! RFID reading is a big clue too.
LE
Lera 2 months ago
Definitely not Cellular. Too long range.
ST
Stephen 2 months ago
Agreed! NFC is designed for that.
DA
Dallas 2 months ago
I think it's NFC. Short range fits perfectly.
LA
Latanya 2 months ago
I think it’s NFC, but what about ANT? Isn’t that also short-range?
RO
Royal 3 months ago
Nah, it’s not Cellular, that’s way too far for this.
MA
Marquetta 3 months ago
Wait, can NFC really read RFID tags too? That’s new to me.
JE
Jeniffer 3 months ago
Agreed, NFC is the way to go for that range!
ZA
Zack 3 months ago
Definitely NFC, it’s perfect for short-range stuff.
CH
Chandra 3 months ago
I’m a bit confused because Bluetooth can also do short-range, but it’s usually more than 10 cm. I guess it has to be NFC.
GL
Glory 3 months ago
I practiced a question like this before, and I think the key is the 10 cm range. That really points to NFC, doesn’t it?
LA
Lai 4 months ago
I’m not entirely sure, but I remember something about NFC being able to read RFID tags. That might be the answer.
EL
Ellsworth 4 months ago
I think Rickson is using NFC because it’s designed for short-range communication, right?
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