To answer this question, we need to understand the purpose and usage of VOL=SER specifications in tape dataset definitions.
VOL=SER is a keyword used in dataset definitions to specify the volume serial number of a tape volume. It is typically used for cataloged datasets, which are datasets that have been registered in a catalog and can be easily accessed and managed by the system.
Given this information, let's evaluate each option:
Option A) Yes - This option suggests that VOL=SER specifications must always be included in tape dataset definitions. However, this is not correct because VOL=SER is not required for all tape datasets, especially for uncataloged datasets.
Option B) No - This option suggests that VOL=SER specifications are not required in tape dataset definitions. However, this is not correct because VOL=SER can be used to specify the volume serial number for cataloged datasets.
Option C) Only for uncataloged datasets - This option is correct. VOL=SER specifications are typically only required for uncataloged datasets. Uncataloged datasets are not registered in a catalog and may require the volume serial number to be specified explicitly.
Option D) Only for cataloged datasets - This option is incorrect because VOL=SER specifications are not limited to cataloged datasets only. It can be used for both cataloged and uncataloged datasets.
Therefore, the correct answer is C) Only for uncataloged datasets. This option is correct because VOL=SER specifications are typically needed for uncataloged datasets to specify the volume serial number explicitly.