Explain the Use of Reference Workloads. VXRAIL-DESIGN Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   When describing a reference workload, what does 'latency' refer to?

   • AThe total amount of storage capacity required
   • BThe time it takes for a storage or network operation to complete
   • CThe speed of the network connection between nodes
   • DThe number of virtual machines that can run on a host
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2. 2foundation · easy

   What is a limitation of using reference workloads for VxRail sizing?

   • AThey guarantee that the cluster will perform exactly as expected
   • BThey may not accurately represent the specific performance characteristics of the customer's actual workloads
   • CThey are too complex to be used in any sizing exercise
   • DThey are only applicable to VDI workloads, not other types
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4. 3expert · hard

   A VxRail architect is designing a cluster for a customer's custom application. The customer has provided performance data showing a highly variable workload with peak IOPS of 50,000 but average IOPS of only 10,000. The closest reference workload specifies a steady 20,000 IOPS. The architect is concerned about the peak IOPS. What is the most appropriate action?

   • ASize the cluster for the average IOPS of 10,000 to optimize cost and utilization.
   • BAnalyze the duration and frequency of the peak IOPS to determine if the cluster can absorb the peak with burst capacity or if it needs to be sized for the peak.
   • CSize the cluster for the peak IOPS of 50,000 to ensure performance is never degraded.
   • DUse the reference workload's 20,000 IOPS as a compromise between peak and average.
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5. 4foundation · easy

   Which VxRail node type would be most appropriate for a reference workload that requires very high IOPS and low latency?

   • AA node with all-flash storage
   • BA node with the smallest memory capacity
   • CA node with only HDD storage
   • DA node with the lowest CPU count
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6. 5expert · hard

   A VxRail architect has completed a sizing exercise using a reference workload for a customer's SAP environment. The customer has provided historical performance data that shows the workload has a significant amount of read cache hits, which the reference workload does not account for. What is the most appropriate action for the architect?

   • AUse a different reference workload that includes cache hit characteristics.
   • BAdjust the sizing to account for the cache hits, which may reduce the required IOPS and potentially allow for a smaller node configuration.
   • CIncrease the node count to ensure the cache hits do not cause performance issues.
   • DIgnore the cache hit data because the reference workload is the validated baseline.
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