Looking at the EMP$\_$NAME and EMP$\_$PHONE contents in Figure P$1\mathrm{.}5,$ what change$($s$)$ would you recommend?

Identify the various data sources in the file you examined in Problem $5.$

Given your answer to Problem $7,$ what new files should you create to help eliminate the data redundancies found in the file shown in Figure P$1\mathrm{.}5?$