Which two recommendations should a Cloud Advisor make to a client looking to implement high availability application In a cloud? (Select 2)

Which two recommendations should a Cloud Advisor make to a client looking to implement high availability application In a cloud? (Select 2)
A . Disable all logging to ensure high throughput for each component
B . Store state locally in each application component
C . Have graceful failure modes
D . Build redundancy at each layer and avoid single of failure.
E . Optimize applications on SOA-based architecture

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Answer: D,E