An administrator needs to create a structured application delivery configuration that will prevent individual objects from being modified directly Which F5 technology should the administrator use?

iRules are TCL-based scripts for custom traffic manipulation and have no mechanism to group or lock configuration objects.

iApps creates an application service object that groups all related BIG-IP configuration elements (virtual servers, pools, profiles) into a single managed unit. Because the objects are owned by the iApp template, they cannot be modified independently outside the template context. This enforces consistency and prevents configuration drift on individual objects.

iSessions is an F5 remote access and SSL VPN technology, unrelated to application delivery templating.

iControl is F5's REST and SOAP API framework used for programmatic management, not for creating structured delivery configurations that lock objects.