ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
Your organization plans to deploy a multi-tenant SaaS on a public cloud. Compliance requires that each VM's memory remain confidential even if the underlying hypervisor or other tenants are compromised. Which processor security extension most directly satisfies this requirement?
AMD Secure Encrypted Virtualization (SEV) encrypts each virtual machine's memory with a unique, hardware-generated key that even the hypervisor cannot access, providing strong isolation in multi-tenant cloud environments. Intel SGX protects small enclaves inside a single process but is not designed to shield an entire VM from a hostile hypervisor. Intel VT-x supplies hardware support for virtualization but does not itself encrypt guest memory. ARM NEON is a SIMD instruction set for accelerating multimedia and cryptographic operations and offers no isolation or memory-encryption features. Therefore, AMD SEV is the most appropriate choice to meet the stated requirement.
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What is AMD Secure Encrypted Virtualization (SEV) and how does it work?
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How does Intel SGX differ from AMD SEV?
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Why doesn’t Intel VT-x or ARM NEON meet the requirement for memory encryption in VMs?
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Can you explain how AMD Secure Encrypted Virtualization (SEV) functions?
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What are the key differences between AMD SEV and Intel SGX?
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Why is Intel Virtualization Technology (VT-x) not suitable for securing VM memory?
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Implementation
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