Which of the following files is a permanent SAS file?

A permanent SAS file is one that is saved to a specified location on your disk or server, meaning it can be accessed for future sessions without being recreated. Temporary files, on the other hand, typically exist only for the duration of a SAS session and are stored in the Work library, which is automatically deleted when the session ends.

In this case, files stored in the Cert library (as seen in the second and third choices) indicate that they are likely permanent files since they refer to a library that is intended for permanent storage. The library named Cert usually maps to a directory or location on disk where SAS files can be saved and accessed later.

Work.PrdSale, on the other hand, belongs to the Work library, which is temporary. Therefore, this file will not be retained after the SAS session concludes.

The first and second choices describe files that are intended for permanent storage, while the first choice specifically does not. This distinction confirms that only the files in the Cert library are permanent, which aligns with the answer indicating that both the second and third options are correct in being permanent SAS files.