EMC Proven Professional – Technology Architect — Question 24

In the event of a virtual machine failure, which technique provides zero downtime?

Answer options

• A. Fault tolerance
• B. Clone
• C. Snapshot
• D. Backup

Correct answer: D

Explanation

The correct answer is D, as backups allow for restoration without any service interruptions if a virtual machine fails. Options A, B, and C do not provide the same level of continuous availability; Fault tolerance can minimize downtime but not eliminate it entirely, while Clones and Snapshots are more about creating copies rather than ensuring zero downtime.