Explain the primary difference between random access memory (RAM) and read-only memory (ROM).
What will be an ideal response?
RAM chips are volatile storage devices, meaning they lose their contents if the current is turned off or disrupted (as happens in a power surge, brownout, or electrical noise generated by lightning or nearby machines). ROM is nonvolatile meaning that its contents are not lost if the power is turned off or interrupted.
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Enforcing referential integrity assures that ________
A) you cannot leave that field empty B) you cannot enter a value in the foreign key if there is no corresponding value in the primary key C) you cannot enter the same value in the foreign key of the same table D) you cannot enter invalid or incorrect information
Functional dependency occurs when the value of one field is determined by the value of another
Indicate whether the statement is true or false