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?

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

  • 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.

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

  • 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.

ISC2 Certified Cloud Security Professional (CCSP)
Cloud Security Operations
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