Which of the Following Statements Concerning the Replication and Duplication

question 87

Multiple Choice

Which of the following statements concerning the replication and duplication process for updating distributed databases is correct?

• A) The two terms are interchangeable because the processes work the same way
• B) Duplication is the more complicated process because it has to identify one database as a master and prevent changes being made to any database other than the master
• C) Replication is the more complicated process because it must find changes in each distributed database and make appropriate changes to make each database identical
• D) None of the choices are correct.

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Definitions:

Pretest

An initial test or assessment conducted before the main test or experiment to evaluate participants' baseline abilities, knowledge, or attitudes.

Pretest-Posttest

A research design that measures the effect of an intervention by comparing conditions before and after the intervention is applied.

Posttest-Only

A research design where measures are taken only after the experimental manipulation, without a pretest comparison.

Mortality

The loss of subjects who decide to leave an experiment. Mortality is a threat to internal validity when the mortality rate is related to the nature of the experimental manipulation.