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Free CompTIA ITF+ FC0-U61 Practice Question

In a database table, what is the BEST description of a 'Primary Key'?

  • A combination of two or more columns to guarantee a unique record identifier.

  • A column that uniquely identifies each record within the table.

  • A column that is used to establish a link between two tables.

  • A tool to enhance the speed of data retrieval within the table.

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CompTIA ITF+ FC0-U61
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