Crucial Exams

ISC2 Certified Cloud Security Professional (CCSP) Practice Question

Your company runs a stateless web service on six virtual machines (VMs) in a public IaaS environment. The VMs are registered behind the provider's managed load balancer. A critical operating-system security patch has been released that requires a reboot. Management insists that customers must see no noticeable outage and that at least 95 % of capacity remain online throughout the maintenance. Which update strategy will BEST meet the availability requirement?

  • Schedule an extended maintenance window, disable the load balancer listener, sequentially patch and reboot each VM, and re-enable the listener when all are complete.

  • Put every VM into maintenance mode, apply the patch to all systems at the same time, and then reboot them together.

  • Initiate live migration of each VM to a different availability zone, apply the patch in the target zone, and then fail back when finished.

  • Create a new golden image that includes the patch, add it to the auto-scaling or instance group, and roll out the update by gradually replacing instances as they pass health checks behind the load balancer.

ISC2 Certified Cloud Security Professional (CCSP)
Cloud Security Operations
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