What is the full form of USSD?

A. Unstructured Supplementary Service Data अनस्ट्रक्चर्ड सप्लीमेंट्री सर्विस डाटा

B. Unstable Supplementary Service Data अनस्टेबल सप्लीमेंट्री सर्विस डाटा

C. Under Supplementary Service Data अंडर सप्लीमेंट्री सर्विस डाटा

D. None of these कोई नहीं

Correct Answer is :

A. Unstructured Supplementary Service Data

Explanation

<p>USSD is a communication protocol used by GSM mobile phones to communicate with the mobile network operator’s computers.</p><p>It is commonly used for:</p><ul><li>Balance checks</li><li>Mobile banking</li><li>Recharge services</li><li>Accessing value-added services (VAS)</li></ul>