AppTrack is a feature of Juniper Networks firewall solutions that allows administrators to track applications, users, and the amount of traffic generated by those applications on the network. AppTrack can be enabled on specific security zones of the network to monitor traffic on those zones. This feature can be used to determine how much traffic a popular gaming application is generating on the network. For more information, please refer to the Juniper Networks JNCIS-SEC Study Guide.
Reference:
AppTrack is a feature of the Junos OS that provides visibility into the applications and users on your network. It tracks the usage of applications and provides detailed reports on the amount of traffic generated by each application. By enabling AppTrack on the proper security zones, you can determine how much traffic a popular gaming application is generating on your network.

The two statements that are correct about the cSRX are that it supports firewall, NAT, IPS, and UTM services, and that it has three default zones: trust, untrust, and management. The cSRX is a software-defined security solution that provides comprehensive network security capabilities and is designed for virtualized environments. It supports firewall, NAT, IPS, and UTM services to protect against threats, as well as BGP, OSPF, and IS-IS routing services for routing functionality. Additionally, the cSRX has three default zones: trust, untrust, and management. The trust zone is used to define traffic that is allowed to enter the network, the untrust zone is used to define traffic that should be blocked from entering the network, and the management zone is used to manage the device itself. The cSRX does not support Layer 2 "bump-in-the-wire" deployments.