Hello there!
They already gave you the answer just by saying "while serving his or her nation". So, the only way you can serve your nation is when you join the military.
So, the correct missing word is Joining the military.
I hope this helps!
The answer is Tailoring the baseline to their needs.
After an organization selects applicable security control baseline but finds not all of the controls apply, it initiates a tailoring process to modify the controls appropriately and more closely with specific conditions related to organizational missions, information systems or environments of operation. It is an integral part of the security control selection and specification and involves risk management processes like assessing, responding to, and framing.
Mobile device management is a type of security software used by an IT department to monitor, manage, and secure employees' mobile devices (laptops, smartphones, tablets, etc.) that are deployed across multiple mobile service providers and across multiple mobile operating systems being used in the organization.
