Final answer:
The question asks which operation cannot be performed by a public user in relation to certain items typically associated with a content management system or service catalog. Generally, public users have limited permissions. A public user would typically be able to
Step-by-step explanation:
A public user can typically view categories and catalog items but cannot access catalog tasks which are related to the administration side of a service catalog. Therefore, Read Catalog Tasks is the operation that cannot be performed by a public user.
- Read Categories: View different categories of items.
- Read Catalog Item: View details of individual catalog items.
However, public users often do not have the permission to:
- Read Catalog Tasks: Access the tasks related to catalog items because this usually requires more advanced permissions and is associated with the management or administration side of the service catalog.
Therefore, Read Catalog Tasks is the operation that cannot be performed by a public user.