Jack is a system administrator in an organization. He downloaded a patch, installed it, and the server stopped functioning. What should he do next?
  1. Call the manufacturer and see whether a fix is available.
  2. Roll back the changes.
  3. Reload the patch and see whether the problem stops.
  4. Document the changes and troubleshoot.
Explanation
Answer: B - Rolling back changes should be the next step to recovering the servers and making them quickly available for users.

Key Takeaway: Rollback is a method to revert your patch/driver version to the previous working version. While rollback may not be an assured fix to the problem, it may be carried out as an intermediate step leading to a problem resolution. This is a good example of why one should test a patch on an identical test server before putting it on a production machine.
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