VMware Certified Professional - Data Center Virtualization (VCP-DCV) Practice Exam

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What is the corresponding VAAI support status in the vSphere Web Client if the command line output shows 'ATS Status: unsupported'?

  1. Unknown

  2. Supported

  3. Not supported

  4. Unsupported

The correct answer is: Unknown

In the context of VAAI (vStorage APIs for Array Integration) support within VMware vSphere, if the command line output indicates that the 'ATS Status' is 'unsupported', it signifies that the array in question does not support the Atomic Test and Set (ATS) feature, which is an important component for optimizing VMware storage operations. When this situation arises, the vSphere Web Client will generally represent the status of VAAI support as 'Unknown'. This is because the system cannot definitively classify the support status beyond unsupported, likely due to the absence of enough information or capability from the storage array itself to provide a clear and specific support status. This ensures that administrators are made aware that there is a limitation, and further investigation may be required to determine additional details regarding VAAI functionality. In contrast, the other potential statuses like 'Supported', 'Not supported', or 'Unsupported' would imply a clearer classification, which is not the case when the command line directly states an unsupported status for ATS. Therefore, 'Unknown' accurately reflects the ambiguity present in the system’s ability to determine the support status.