While creating the CD/DVD or ISO image, you will see “Subject to Activation” under the Sanitization/Boot Disk label.
This means that, when you boot from the CD/DVD, you will have to enter an Answer key to proceed further. This Answer Key is uniquely associated to a Protection Key that is displayed when you boot from the CD/DVD (each time you boot, another Protection Key is provided that corresponds to a different Answer Key). This Answer Key can be obtained from a special URL provided to you on the screen. Therefore, you must obtain this Answer Key from a web browser on another device (computer, mobile phone, tablet, etc.) with an active Internet connection.