A systems administrator has finished installing monthly updates to servers in a cloud environment. The administrator notices certain portions of the playbooks are no longer functioning. Executing the playbook commands manually on a server does not work as well. There are no other reports of issues.
Which of the following is the MOST likely cause of this issue?
A . Change management failure
B . Service overload
C . Patching failure
D . Job validation issues
E . Deprecated features
Answer: D