Computer Science for IGCSE & O level - Hardware (Section 10 - No. 38)
What are the potential disadvantages of QR codes, as discussed in the text? (Select all that apply)
More than one QR code format is available.
Malicious code could be embedded within.
QR codes are more complicated for the user to scan.
They are slow to scan.
Giải thích
The text notes that multiple QR code formats exist and malicious code could be embedded in a QR code.