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Exam 212-82 All Questions

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Exam 212-82 topic 1 question 25 discussion

Actual exam question from ECCouncil's 212-82
Question #: 25
Topic #: 1
[All 212-82 Questions]

Leo has walked to the nearest supermarket to purchase grocery. At the billing section, the billing executive scanned each product's machine-readable tag against a readable machine that automatically reads the product details, displays the prices of the individual product on the computer, and calculates the sum of those scanned items. Upon completion of scanning all the products, Leo has to pay the bill.
Identify the type of short-range wireless communication technology that the billing executive has used in the above scenario.

  • A. Radio-frequency identification (RFID)
  • B. Near-field communication (NFC)
  • C. QUIC
  • D. QR codes and barcodes
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by chuck4real at Sept. 23, 2023, 6:53 p.m.

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a342364
2 months, 2 weeks ago
QR codes and barcodes: These are commonly used in retail environments for product identification and pricing. The process involves scanning the codes with a machine-readable scanner, which reads the product details and calculates the total bill.
upvoted 1 times
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iitc_duo
4 months, 2 weeks ago
Wireless doesn't mean to be readio frequency alone, it can be optical bar code reader too. So As per CCT book machine radable tag most of the time QR codes or 2D bar code. Thus, correct answer is D.
upvoted 1 times
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Ligeti15
4 months, 3 weeks ago
Selected Answer: D
QR Codes and barcodes are listed under short-range wireless communication (page 1562), and the description matches the question perfectly. There are no tags used in NFC (maybe RFID, but not NFC), NFC communication is done between two devices to "exchange" information, RFID is for identification... IMHO
upvoted 1 times
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RSMCT2011
12 months ago
Selected Answer: D
Explanation: QR Codes and Barcodes: These codes are machine-readable tags that contain information about the product or item to which they are attached. A quick response code, or QR code, is a two-dimensional code that stores product information and can be scanned using smartphones, whereas a barcode comes in both one-dimensional (1D) and two-dimensional (2D) forms of code
upvoted 1 times
Markwest100
5 months, 1 week ago
QR codes and barcodes are not short-range wireless communication technologies. They are considered optical scanning technologies.
upvoted 1 times
Markwest100
5 months, 1 week ago
B. NFC is the correct answer
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chuck4real
1 year, 2 months ago
The correct answer is C, a short-range wireless communication.
upvoted 1 times
chuck4real
1 year, 2 months ago
My bad, I meant B (NFC).
upvoted 1 times
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A (35%)
C (25%)
B (20%)
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