Perry mentions that some data in a file processing system may be repeated in several different files. What is the name of this type of problem?

Data duplication is the name of this type of problem.

Explanation:

This repetition of some data in a file processing system makes the system cumbersome.  It does not allow for the consolidation and concentration of efforts.  The danger lies in choosing which of the versions of data to implement.  This is why data in a file processing system should be streamlined by ensuring adherence to laid down procedures for data collection and file processing.

look at the engine block shown in the figure. the engine shown in this figure is a/an  

  a. four-cylinder, horizontally opposed engine.

  b. eight-cylinder, v-type engine.

  c. six-cylinder, v-type engine.

  d. four-cylinder, in-line engine