Which of the following is MOST effective in preventing security weaknesses in operating systems?

A.
Patch management

B.
Change management

C.
Security baselines

D.
Configuration management

Explanation:

Patch management corrects discovered weaknesses by applying a correction (a patch) to the
original program code. Change management controls the process of introducing changes to
systems. Security baselines provide minimum recommended settings. Configuration management
controls the updates to the production environment.