SAS Certification Prep Guide, 5th Edition

Chapter Quiz

Select the best answer for each question. Check your answers using the answer key in the appendix.

1. SAS date values are the number of days since which date?

   1. January 1, 1900
   2. January 1, 1950
   3. January 1, 1960
   4. January 1, 1970
2. What is an advantage of storing dates and times as SAS numeric date and time values?

   1. They can easily be edited.
   2. They can easily be read and understood.
   3. They can be used in text strings like other character values.
   4. They can be used in calculations like other numeric values.
3. SAS does not automatically make adjustments for daylight saving time, but it does make adjustments for which one of the following?

   1. leap seconds
   2. leap years
   3. Julian dates