VMware Data Center Virtualization Fundamentals — Question 14

How does fault tolerance provide continuous availability?

Answer options

• A. By providing the availability required by most applications running in virtual machines, independent of the operating system and application running in it.
• B. By using a feature called Changed Block Tracking (CBT), which backs up content.
• C. By creating and maintaining a secondary virtual machine that is identical to primary machine.
• D. By using the host as the medium to provide asynchronous replication of datastores.

Correct answer: C

Explanation

The correct answer, C, explains that fault tolerance works by having a backup virtual machine that is a replica of the primary one, ensuring continuous availability even if the primary fails. Options A and B do not directly address fault tolerance, and D refers to replication, which does not guarantee immediate failover like fault tolerance does.