Question

    What is USSD in mobile industry?

    A United States Service Department Correct Answer Incorrect Answer
    B Unstructured Supplementary Service Data Correct Answer Incorrect Answer
    C Universal Source and System Data Correct Answer Incorrect Answer
    D Uniquely Structured Systematic Device Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Unstructured Supplementary Service Data (USSD), sometimes referred to as "Quick Codes" or "Feature codes", is a protocol used by GSM cellular telephones to communicate with the service provider's computers.USSD messages are up to 182 alphanumeric characters long. Unlike Short Message Service (SMS) messages, USSD messages create a real-time connection during a USSD session. The connection remains open, allowing a two-way exchange of a sequence of data. This makes USSD more responsive than services that use SMS.

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