A company is using a client-side hypervisor to run several virtual machines for development purposes. Which measure should be implemented to BEST secure the virtual environment against unauthorized access?
Regularly update the guest operating system of the virtual machine.
Set a BIOS/UEFI password on the host machine.
Implement full disk encryption on the host machine's drives.
Require multifactor authentication for virtual machine access.
Requiring multifactor authentication for accessing virtual machines provides an additional layer of security beyond just usernames and passwords. It ensures that even if login credentials are compromised, unauthorized users would need another form of verification to gain access. Regularly updating the virtual machine's guest operating system, although important for security, might not prevent unauthorized access if credentials are compromised. BIOS/UEFI passwords are set at the hardware level and do not directly secure the virtual environment. Full disk encryption is useful for data at rest security but does not specifically address access control the way multifactor authentication does.
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What is multifactor authentication (MFA)?
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Why is updating the guest operating system important?
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What is full disk encryption and how does it work?