A network administrator is troubleshooting a network outage, and she believes the issue is related to a bad switch. The old switch is then replaced with a newer model and the cabling is moved to the new switch. Which of the following should be the NEXT troubleshooting steps?$($Choose TWO$)$ A$.$ Test the theory$$ B$.$ Verify full system functionality$$ C$.$ Establish a plan of action$$ D$.$ Identify the problem$$ E$.$ Document the findings