An IT operations team wants to deploy new servers while preserving a consistent, secure baseline. They created a reference build that was patched and validated before deployment. Which measure helps to keep that reference in a trustworthy state for future servers?
Seal the template in read-only storage for future deployments
Intercept system changes with a scanning tool and skip scheduled updates
Activate strong host-based controls and refrain from re-imaging
Refresh the template with new patches and confirm integrity with a hashing mechanism
Refreshing the reference with new patches ensures that newly discovered issues are addressed. Confirming its integrity with a hashing mechanism helps detect unwanted modifications. Other methods, such as relying on antivirus only, avoiding regular re-imaging, or locking the reference in read-only storage, leave the reference open to potential exposure and fail to confirm alterations effectively.
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What is a hashing mechanism?
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Why is it necessary to refresh the template with new patches?
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How does confirming integrity with a hashing mechanism ensure security?