Are you planning to take the Security+ exam? If so, make sure you understand basics about patch management.
See if you can you answer this sample question.
Q. A software vendor recently developed a patch for one of its applications. Before releasing the patch to customers, the vendor needs to test it in different environments. Which of the following solutions provides the BEST method to test the patch in different environments?
A. Baseline image
C. Virtualized sandbox
D. Change management
Check out the answer and a full explanation here.