SAS Certification Prep Guide, 4th Edition

Chapter Quiz

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

1. What is true for the double trailing at-sign (@@)?

   1. It enables the next INPUT statement to read from the current record across multiple iterations of the DATA step.
   2. It must be the last item specified in the INPUT statement.
   3. It is released when the input pointer moves past the end of the record.
   4. All of the above.
2. A record that is being held by a single trailing at-sign (@) is automatically released when one of the following actions occurs.

   1. The input pointer moves past the end of the record.
   2. The next iteration of the DATA step begins.
   3. Another INPUT statement that has an @ executes.