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What are primary keys and foreign keys?
Primary keys are the unique identifiers for every row. They must have unique values and cannot be null. Due to their significance in relational databases, Primary keys are the most fundamental of all keys and constraints. A table can have only one Primary key. Foreign keys are both a method of ensuring data integrity and a manifestation of the relationship among tables.
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Suppose you have to develop an error recovery protocol for a link that is unreliable and delay sensitive, which of the following protocol would you choose? (i) Stop & wait.
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A circuit can be designed to perform manydifferent functions e.g.a circuit has 3 inputs A, B and C and 3 outputs:Output X is logic level 1 (or 'high') if one or moreinputs are at l
type of differential amplifier
What is a word line? In a memory cell, all the cells of a row are linked to a common line called as word line
What is a pointer? The register or memory location that having the address of an operand is known as a pointer.
short note on risk projection
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