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The correct answers are A, C, and D.

OBJ-1.6: Serverless is a modern design pattern for service delivery. With serverless, all the architecture is hosted within a cloud, but unlike “traditional” virtual private cloud (VPC) offerings, services such as authentication, web applications, and communications aren’t developed and managed as applications running on servers located within the cloud. Instead, the applications are developed as functions and microservices, each interacting with other functions to facilitate client requests. There is a heavy dependency on the cloud service provider in a serverless architecture system since all of the back-end infrastructure’s patching and management functions are done by them. An organization using such an architecture would still need to prevent compromise of the user endpoints, though the cloud service provider does not manage these. Another concern with serverless architectures is that there are limited options for disaster recovery if service provisioning fails. Patching of backend infrastructure is eliminated because the infrastructure is eliminated with serverless architectures. Once migration is complete, there are no physical servers to manage, which reduces the workload on your system administration teams.

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