Besides the level of classification, what other information can appear in portion and banner markings?

The correct answer highlights that control and dissemination markings can indeed appear alongside the level of classification in portion and banner markings. These markings are essential as they provide additional information on how the classified information should be handled, shared, or protected. Control markings indicate any special conditions or restrictions on the dissemination of the document, which is critical for ensuring that sensitive information is not improperly shared or accessed by unauthorized individuals.

In contrast, the other choices lack the relevance that the correct answer provides. While the document creation date is essential for record-keeping, it does not typically appear in the portion and banner markings format. Similarly, author names and titles, while informative, are not standard elements required in these markings, making them less relevant to the purpose of portion and banner markings. Lastly, stating "only security classification level" overlooks the importance of additional details like dissemination controls that enhance the understanding and management of classified information.