Answer to Question #219036 in Computer Networks for stan

Question

Discuss a simple networked system that could be used at the entrance to an examination hall at AIT in order to eliminate the manual checking of examination chits and ID cards during an exam session. Assemble such a system and discuss all the components of the system and how they function in detail.

Answer 1

QR generator, android studio, android mobile phone.

Android mobile phone is the hardware module. So we need not to have an additional scanning device. Mobile camera is acting like a scanner which helps to decode the data which is present in the QR code. We can able to decode the QR code in any angle and afterwards the scanner is able to change an angle of future purposes.

By using this software, we can develop an application to scan the QR code which is pasted on your id card. After scanned, the application shows the respective results.

Level L (Low) : 7% of code words can be restored.

Level M (Medium) : 15% of code words can be restored.

Level Q (Quartile) : 25% of code words can be restored.

Level H (High) : 30% of code words can be restored.