ISC2 Certified Cloud Security Professional (CCSP) Practice Question
Your organization is building a private IaaS cloud on-premises. One design goal is to let virtual machines be moved between hypervisor hosts with zero downtime while retaining the same virtual disk and IP configuration. The storage subsystem must also support rapid horizontal scaling of compute nodes. Which combination of building-block technologies BEST satisfies these requirements?
Event-driven serverless functions storing state in object storage buckets
Platform as a Service deployment of stateless microservices, each in its own isolated VPC
Type-1 hypervisor hosts that boot guests from a shared block-level SAN exposed with multipath iSCSI
Linux container engine on bare metal using only local NVMe drives and BGP-advertised host routes
Hypervisor-based server virtualization separates a guest's compute instance from the underlying hardware, permitting live migration if every host can see the same disk image. Presenting shared block storage from a networked SAN over multipath iSCSI meets that requirement and scales horizontally as new hosts are added. Containers with local disks lack shared persistent storage, serverless functions are not migrated between hosts, and running PaaS microservices in separate VPCs would change network addressing and does not provide live VM migration.
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What is a Type-1 hypervisor, and why is it important for live migration?
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What is multipath iSCSI, and how does it support scaling in this scenario?
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Why wouldn’t containers or serverless functions work for live VM migration?
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What is a Type-1 hypervisor, and why is it critical for live migration?
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What is multipath iSCSI, and how does it benefit virtualized environments?
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Why is shared block storage critical for VM live migration?
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ISC2 Certified Cloud Security Professional (CCSP)
Cloud Concepts, Architecture and Design
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