SAS Certification Prep Guide, 4th Edition

Quiz

Select the best answer for each question. After completing the quiz, check your answers using the answer key in the appendix.

1. Which statement is true about an index?

   1. It is an optional file that is associated with a data set.
   2. It provides direct access to specific observations of a data set, based on the value of one or more key variables.
   3. It can be classified as simple or composite, either of which can consist of unique values.
   4. All of the above.
2. Which of the following correctly creates a data set named Flights from the Sasuser.Revenue data set, creates a composite index named Fromto that is based on the values of Origin and Dest, and prints informational messages about the index to the SAS log?

   1. options ...