21. A vendor normally releases security patches for its operating system on a monthly basis. An administrator receives an email from the vendor that says the vendor has published a patch for a zero-day flaw in its operating system outside of the normal patch schedule. Which of the following actions should the administrator take first in order to properly address this issue in a production environment?
Answer: D
Deploy the patch to a small number of computers in order to test it in a lab.
To properly address the issue of a zero-day flaw in a production environment, the administrator should first deploy the patch to a small number of computers for testing. This approach allows for evaluating the patch's impact and effectiveness before a wider rollout.
A) Wait until the next monthly patch is issued and deploy it with those updates.
Waiting for the next monthly patch would leave the system vulnerable to the zero-day flaw for an extended period. This option does not prioritize the urgent nature of the security risk posed by a zero-day vulnerability.
B) Immediately deploy the patch to all company-owned computers.
While deploying the patch immediately addresses the vulnerability, doing so without testing could lead to unforeseen issues or conflicts with existing systems. It is critical to validate the patch's stability before full deployment in a production environment.
C) Delay the patch deployment to not interfere with the production environment.
Delaying the patch deployment is not advisable, especially with a zero-day flaw that poses an immediate security threat. This option risks leaving the systems exposed to potential exploitation, which is counterproductive to maintaining security.
D) Deploy the patch to a small number of computers in order to test it in a lab.
This is the correct approach as it balances the need for security with the necessity to maintain system stability. By testing the patch in a controlled environment, the administrator can ensure that it does not disrupt production operations while effectively addressing the security issue.
Conclusion
The correct answer is to deploy the patch to a small number of computers for testing, as this method mitigates risks associated with immediate deployment across all systems or delaying action altogether. Options A, B, and C either neglect the urgency of the security flaw or introduce unnecessary risks, while D provides a strategic and cautious response to a critical cybersecurity issue.