A technician learns that a newly disclosed zero-day vulnerability is actively being exploited against the company file server. Management instructs the IT team to deploy the vendor's hotfix within the next hour, even though the regular weekly maintenance window is two days away. When filling out the change request, which change type should the technician select?
Changes that must be implemented immediately to correct a serious problem or security exposure are classified as emergency changes in standard change-management frameworks such as ITIL. Emergency changes are performed outside normal maintenance windows and may follow an abbreviated approval process so remediation can occur as quickly as possible. A standard change is a routine, pre-authorized action performed regularly with low risk, while a normal change follows the full review and approval cycle during a scheduled window. "Routine maintenance" is not a formal change-management category.
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What is a zero-day vulnerability?
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What is the ITIL framework and how does it relate to change management?
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What distinguishes an emergency change from a normal or standard change?