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    Which of the following pair of acronyms and their expansion is incorrectly matched?
    Question

    Which of the following pair of acronyms and their expansion is incorrectly matched?

    A.

    ROM-Read Only Memory

    B.

    WAN-Wide Area Network

    C.

    OMR-Optical Mark Recognition

    D.

    USB-Universal Secure Bus

    Correct option is D

    The correct expansion for USB is Universal Serial Bus, not Universal Secure Bus.
    Information Booster:
    · ROM is a type of non-volatile memory.
    · WAN covers a broad area such as multiple cities or countries.
    · OMR is used to read marks on paper, such as exam answer sheets.

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