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klio [65]
2 years ago
15

A(n) _____ is a data validation rule that should be applied to mandatory data items.

Computers and Technology
1 answer:
inna [77]2 years ago
4 0

An<u> existence check</u> is a data validation rule that should be applied to mandatory data articles.

<h3>What are the rules of data validation?</h3>

What are data validation rules Data validation rules control what constants can be joined into a cell, e.g. any whole number between 0 and 9, or one of several values from another part of the spreadsheet

<h3>What is a presence check?</h3>

A method of verification that checks if the user has entered some data. This is sometimes described as a “required field” when completing an online form. Reality checks are important as they help to avoid accepting partial information which cannot be rectified later.

To learn more about data validation, refer

brainly.com/question/27138101

#SPJ4

Complete question is,

• A synchronic check

• Range check

• Sequence check

• Existence check

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Using Amdahl’s Law, calculate the speedup gain of an application that has a 60 percent parallel component for (a) two processing
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Answer:

a) Speedup gain is 1.428 times.

b) Speedup gain is 1.81 times.

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in order to calculate the speedup again of an application that has a 60 percent parallel component using Anklahls Law is speedup which state that:

t=\frac{1 }{(S + (1- S)/N) }

Where S is the portion of the application that must be performed serially, and N is the number of processing cores.

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(b) For N = 4 processing cores and a 60%, then S = 40% or 0.4

Thus, the speedup is:

t=\frac{1}{(0.4 + (1-0.4)/4)} = 1.8181

Speedup gain is 1.81 times.

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