Several critical servers are unresponsive after an update was installed. Other computers that have not yet received the same update are operational, but are vulnerable to certain buffer overflow attacks. The security administrator is required to ensure all systems have the latest updates while minimizing any downtime.
Which of the following is the BEST risk mitigation strategy to use to ensure a system is properly updated and operational?
A . Distributed patch management system where all systems in production are patched as updates are released.
B . Central patch management system where all systems in production are patched by automatic updates as they are released.
C . Central patch management system where all updates are tested in a lab environment after being installed on a live production system.
D . Distributed patch management system where all updates are tested in a lab environment prior to being installed on a live production system.
Answer: D