2V0-21.23 Question 54
Select 3An organization is running critical applications that must remain available even in the event of a hardware failure. They are considering implementing VMware vSphere Fault Tolerance (FT) to ensure continuous availability. Which use cases would be appropriate for deploying Fault Tolerance in this scenario?
- A
A database server that handles financial transactions and cannot tolerate any data loss or downtime
- B
A test and development virtual machine used for experimenting with new software features
- C
A mission-critical application that requires high availability with zero interruption in case of a hardware failure
- D
A web server running a static website that can tolerate brief downtime with minimal business impact
- E
A legacy application that runs on a single virtual machine and cannot be clustered or load-balanced
Show answer and explanation
Correct answers: A, C, E
Explanation
Fault Tolerance is designed for virtual machines running critical workloads that demand continuous availability and cannot tolerate downtime or data loss. Use cases such as financial database servers, mission-critical applications, and legacy systems that cannot leverage clustering align well with Fault Tolerance. However, workloads like test and development environments or static web servers that can afford downtime are not suitable candidates, as Fault Tolerance would be an over-engineered solution in such cases.
- A. Correct.
Fault Tolerance is ideal for a database server handling financial transactions because it provides zero downtime and no data loss during hardware failures.
- B. Incorrect.
Test and development virtual machines are not ideal candidates for Fault Tolerance, as they do not typically require continuous availability and can tolerate downtime.
- C. Correct.
Fault Tolerance is a perfect fit for mission-critical applications requiring uninterrupted availability, as it ensures zero downtime and data integrity in case of hardware failure.
- D. Incorrect.
Web servers running static websites can often tolerate brief downtime, making Fault Tolerance unnecessary and potentially cost-inefficient in this case.
- E. Correct.
Fault Tolerance is well-suited for legacy applications that cannot be clustered or load-balanced, as it ensures their availability without requiring application modifications.