A software company has implemented a wireless technology to track the employees' attendance by recording their in and out timings. Each employee in the company will have an entry card that is embedded with a tag. Whenever an employee enters the office premises, he/she is required to swipe the card at the entrance. The wirelesstechnology uses radio-frequency electromagnetic waves to transfer data for automatic identification and for tracking tags attached to objects.
Which of the following technologies has the software company implemented in the above scenario?
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