2V0-21.23 Question 53
Single answerAn organization is running critical applications that cannot tolerate any downtime or data loss. The applications require continuous availability and must remain operational even in the event of a hardware failure. Which use case is best suited for VMware vSphere Fault Tolerance (FT)?
- A
A payroll system that processes employee salaries once a month and can tolerate scheduled downtime for maintenance.
- B
A real-time financial trading application that requires continuous availability and zero downtime to avoid significant monetary losses.
- C
A backup server used to store nightly backups of critical data, which can be restored in case of failure.
- D
A test environment for software development where occasional downtime is acceptable.
Show answer and explanation
Correct answer: B
Explanation
VMware vSphere Fault Tolerance is designed for use cases where applications require continuous availability and cannot tolerate any downtime or data loss, such as real-time financial trading applications. It provides a fully mirrored secondary VM that takes over seamlessly in case of hardware failure, ensuring zero downtime.
- A. Incorrect.
A payroll system processes data periodically and can tolerate scheduled downtime since it does not require continuous availability. Fault Tolerance is not necessary in this case.
- B. Correct.
A real-time financial trading application requires continuous availability and zero downtime, making it an ideal use case for VMware vSphere Fault Tolerance. FT ensures the system remains operational even in the event of host hardware failure.
- C. Incorrect.
A backup server does not require continuous availability as its primary purpose is data restoration in case of failure. Fault Tolerance is not suited for this scenario.
- D. Incorrect.
A test environment for software development can tolerate downtime since it is not critical to maintain continuous availability. Fault Tolerance would be overkill in this case.