A cloud engineer received a support call indicating web apps running on an IaaS server are unavailable. The engineer took the following trouble-shooting steps:
– Hypothesized the server outage is considered to be the cause of the problem.
– Performed rollback of applied patches.
– Ensured all web apps are running correctly.- Documented the incident.
Which of the following troubleshooting methodology steps did the cloud engineer overlook?
A. Establish the theory of probable cause.
B. Establish a plan of action and implement the solution.
C. Test the theory to determine the cause.
D. Verify system functionality.
