Which of the following is an example of personalized content delivery in Sitefinity?

Personalized content delivery in Sitefinity involves customizing the experience for users based on their preferences, behaviors, or demographics. Displaying targeted advertisements is a prime example of this because it tailors the content shown to individual users based on their previous interactions and interests. This approach enhances user engagement and improves the relevance of the content, ultimately fostering a more personalized experience.

In contrast, sending bulk emails generally involves a standard message sent to a large audience without personalization, thus lacking the tailored element that defines personalized content. Resolving user tickets relates to customer support and issue management rather than content delivery, and creating backup files is a technical operation focused on data preservation, which also does not engage with personalized user experiences. Hence, displaying targeted advertisements is the correct choice as it directly aligns with the concept of personalized content delivery.