Phone capabilities and fitness monitoring
The combination of two or more networks is internet work!!
Hope this helps
Answer:
D.
to create a test environment
Explanation:
After releasing it will be "production"
C. OS hardening.
Making an operating system more secure. It often requires numerous actions such as configuring system and network components properly, deleting unused files and applying the latest patches.
The purpose of system hardening is to eliminate as many security risks as possible. This is typically done by removing all non-essential software programs and utilities from the computer.
