Homework Help: Questions and Answers: Which of the following best describes the purpose of a QR code?
A) To store data that can be scanned and read by a smartphone
B) To encrypt sensitive information
C) To provide a physical copy of digital content
D) To improve wireless connectivity
Answer
First, let’s understanding the function of a QR code:
A QR code (Quick Response code) is a type of matrix barcode (or two-dimensional barcode) that can be scanned using a smartphone or QR code reader to quickly access the encoded information.
Now, let’s examine each option to determine correct answer (option).
Given Options: Step by Step Answering
a) To store data that can be scanned and read by a smartphone
- This describes the primary function of a QR code. It stores data such as URLs, text, contact information, etc., which can be easily scanned and accessed by a smartphone.
b) To encrypt sensitive information
- QR codes do not inherently encrypt information. They store data in a way that can be easily read when scanned, but they do not provide encryption by themselves.
c) To provide a physical copy of digital content
- QR codes do not provide a physical copy of digital content. Instead, they link to digital content or store information that can be accessed digitally.
d) To improve wireless connectivity
- QR codes are not designed to improve wireless connectivity. They are used for quick access to information, not for enhancing wireless network performance.
Final Answer
Based on the above analysis, the best description of a QR code’s purpose is:
a) To store data that can be scanned and read by a smartphone.
This option accurately describes the main purpose of QR codes: to store information in a format that can be quickly and easily accessed by scanning with a device like a smartphone.
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