Final answer:
After enabling full disk encryption, the technician should implement an always-on VPN, require encrypted backups, and issue remote wipes as security measures for users who frequently use public Internet connections while traveling. Option A is correct.
Step-by-step explanation:
After ensuring that full disk encryption is enabled, the technician should implement an always-on VPN to enhance security for users who often utilize public Internet connections while traveling. An always-on VPN creates a secure, encrypted connection between the mobile device and the corporate network, protecting sensitive data from potential threats.
Requiring all mobile device backups to be encrypted (option A) is also a good security measure, as it adds an extra layer of protection to the data stored on the devices. Additionally, issuing a remote wipe of corporate and personal partitions (option C) can help prevent unauthorized access to sensitive data if a device is lost or stolen.
Therefore, the most appropriate security measures for the technician to take in this scenario are:
Implement an always-on VPN,
Require all mobile device backups to be encrypted,
Issue a remote wipe of corporate and personal partitions.