Passed Exam Today CAS-004

A Hardware Security Module (HSM) provides the best solution for securely backing up MFA seeds in a central, offline location with minimal management overhead. HSMs are specialized hardware devices designed for cryptographic key management, including storing sensitive data like MFA seeds securely. HSMs offer high levels of protection against tampering and provide offline security, making them an ideal choice for backing up cryptographic materials. CASP+ recognizes HSMs as critical components for managing and securing cryptographic keys in centralized, secure environments.

Bit-level disk duplication creates an exact copy of the storage device, preserving the system's state for in-depth forensic analysis. This helps identify any unauthorized changes to the baseline or other artifacts of compromise. This aligns with CASP+ objective 5.2, which emphasizes conducting forensic activities and ensuring evidence integrity during investigations.

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The most appropriate technology for this virtualization solution is containers. Containers allow multiple services to run on a single host with isolated environments, while sharing the same kernel version and properties of the host operating system. Each container has its own instance of the operating system and runs independently from the others, meeting the requirement for separate environments with their own OS. Containers are more lightweight than full hypervisors and are ideal for running microservices in isolated environments. CASP+ emphasizes the use of containers in scenarios where services need to be isolated but share the same host OS kernel.