A. A universal Cisco IOS image includes all software features; additional software features are then activated by license keys without changing Cisco IOS.
B. In order to obtain a license file, the product ID and serial number of the device are sent to the representative Cisco Channel Partner, along with the purchased product activation key.
C. Cisco IOS 15 is available in two trains: T, which includes bug fixes and new features, and M,which includes bug fixes only.
D. The Cisco ASR 1000 series features IOS-XE, a software architecture that consists of a platform component, IOS-XE middleware, andthe actual Cisco IOS software.