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CompTIA

CNX-001 · Question #13

An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?

The correct answer is B. Test the theory to determine cause.. Applying the CompTIA troubleshooting methodology: The admin has already (1) identified the problem (outage after upgrade) and (2) established a theory of probable cause (firmware bug). The next step is (3) test the theory - for example, checking the vendor's known bug list, attem

Cloud Network Operations and Troubleshooting

Question

An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?

Options

  • AEstablish a plan of action to resolve the issue.
  • BTest the theory to determine cause.
  • CDocument lessons learned.
  • DImplement the solution.

How the community answered

(37 responses)
  • A
    11% (4)
  • B
    81% (30)
  • C
    5% (2)
  • D
    3% (1)

Explanation

Applying the CompTIA troubleshooting methodology: The admin has already (1) identified the problem (outage after upgrade) and (2) established a theory of probable cause (firmware bug). The next step is (3) test the theory - for example, checking the vendor's known bug list, attempting a rollback to the previous firmware, or reproducing the failure in a test environment. Only after confirming the theory can the admin (4) establish a plan of action and (5) implement the solution. Option A (plan of action) comes after the theory is confirmed. Option C (document lessons learned) is the final step. Option D (implement the solution) cannot happen before a plan is established.

Topics

#Troubleshooting#Network Outage#Problem Resolution#Firmware Upgrade

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