Question-45:The user-feedback portal used by your organization is built around a conventional LAMP stack that is replicated across two zones. Except for the database, everything is deployed in the us-central1 region and employs autoscaled managed instance groups on all tiers. At the moment, only a select few clients as a part of a smaller group have access to the site. Under these circumstances, the portal satisfies the 99.99% availability SLA requirement. However, over the next quarter, the corporation will make the site accessible to all users, even those who have not yet verified themselves. You need to come up with a plan for evaluating the system's resilience in order to guarantee that it will continue to meet the SLA even after they add more users to the system. What is it that you ought to do?
A. Record the input from the currently logged-in users, then replay the recorded user load until autoscale is triggered on all layers. Concurrently, put an end to all of the resources located in one of the zones.
B. Create synthetic random user input, replay synthetic load until autoscale logic is triggered on at least one layer, and introduce ?€chaos?€ to the system by terminating random resources on both zones
C. Introduce the new software to a wider audience of users, and continue to expand the user base each day until the autoscale logic is activated on all of the layers. At the same time, put a stop to the use of arbitrary resources in both zones.
D. Record the input from currently logged in users, then repeat that recorded user load until resource usage reaches 80%. Also, estimate the number of users based on how often current users use the application, and ensure that there are sufficient resources to support 200% of the anticipated demand.

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