Question: For a virtualized 3GPP Network Function (NF), what is the basis for calculating the 'Mean virtual disk usage' measurement when multiple VNFC instances are involved, but each supports only one NF?
Option 1: Simple average of all VdiskUsageMeanVnf.vComputeId measurements from all VNFC instances.
Option 2: Weighted average of VdiskUsageMeanVnf.vComputeId measurements, with weights determined by the NF's resource allocation.
Option 3: Weighted average of VdiskUsageMeanVnf.vComputeId measurements, with the algorithm for determining weights being vendor-specific.
Option 4: Maximum value among all VdiskUsageMeanVnf.vComputeId measurements from VNFC instances.
Explanation: The correct answer is based on understanding how the 'Mean virtual disk usage' measurement is generated when there are multiple VNFC instances, each supporting one NF. The measurement is a weighted average of VdiskUsageMeanVnf.vComputeId measurements, with the algorithm for determining weights being vendor-specific.