Which of the Following Is Used to Improve Performance in Frequently

question 71

Multiple Choice

Which of the following is used to improve performance in frequently used columns by maintaining a sort order but does not enforce constraints?

• A) surrogate key
• B) unique index
• C) artificial key
• D) nonunique index

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Definitions:

Hardy-Weinberg Equilibrium

A principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

Allele Frequencies

The relative frequencies of different alleles of a particular gene in a given population.

Genotype Frequencies

The distribution of the different genetic constitutions within a population.

Fixing Beneficial Allele

The process by which a favorable genetic variant becomes present in all individuals within a population due to natural selection.