Where can you find logs related to local users watching YouTube videos?

The correct answer highlights the specific functionality of application control features in logging user activities on network devices. When it comes to managing and monitoring applications such as YouTube, the logs generated by the application control system are pivotal. This functionality is designed to track all aspects of how applications are used within the network, providing detailed insights into user behavior, including what sites are being accessed and how often.

In this context, YouTube is categorized as a web application, and when users watch videos, that activity is logged under security events related to application control. The logs can provide data on bandwidth consumption, time spent on the application, and the specific actions performed by users. This makes application control logs an essential resource for understanding the usage patterns of applications like YouTube in your network.

The other options refer to different categories of logs that do not focus on application-related activities. For instance, VPN events generally relate to virtual private network activity, system events deal with the functioning of the device itself, and user events might encompass broader user access and authentication but not specifically capture the nuances of application usage like watching videos. Hence, the choice regarding application control is uniquely positioned to convey relevant information about users watching YouTube videos.