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  1. A
    unique identifier

    Explanation: Not available 

    1. Twitter
    2. Google+
  2. A
    Byte

    B
    Integer

    C
    Long Integer

    D
    Single

    Explanation: Not available 

    1. Twitter
    2. Google+
  3. A
    Centralized database

    B
    Flat file database

    C
    Relational database

    D
    None of above

    Explanation: Not available 

    1. Twitter
    2. Google+
First123Last
1 of 14 pages