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Qus : Which of the following protocols does the secure digital card application use?
Qusनिम्नलिखित में से कौन सा प्रोटोकॉल सुरक्षित डिजिटल कार्ड एप्लिकेशन का उपयोग करता है?
A. XMPP
B. SPI
C. MQTT
D. HTTPS
Solution
B. SPI
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