Interpret Data Flow Through a Server POWEREDGE-FOUNDATIONS-V2 Practice Questions (Page 2)

Questions 6–10

1. 6expert · medium

   A PowerEdge server is running a virtualized environment with several VMs. The administrator notices that one VM is performing poorly, and the hypervisor reports high memory pressure. The administrator checks the VM's memory settings and finds that it has a fixed memory allocation. Which action would most likely improve the VM's performance?

   • AIncrease the VM's memory allocation.
   • BDisable the VM's memory paging file.
   • CEnable memory ballooning on the hypervisor.
   • DEnable memory overcommitment on the hypervisor.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   In a PowerEdge server with a hardware RAID controller, what is the role of the controller's cache when data is written to a RAID array?

   • AIt permanently stores all data to prevent data loss.
   • BIt temporarily stores write data to improve performance and then flushes it to the drives.
   • CIt reduces the number of drives needed in the array.
   • DIt encrypts data before writing to the drives.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   An administrator is troubleshooting slow write performance on a PowerEdge R650 server with a hardware RAID controller and 12 SAS drives. The workload is write-heavy with small random writes. The administrator checks the controller's cache settings and finds that the write cache is set to 'Write-Through'. What is the most likely effect of this setting on performance?

   • AWrite performance is unaffected because the cache is only used for read operations.
   • BWrite performance is reduced because the controller waits for the write to be committed to the drives before acknowledging the host.
   • CWrite performance improves because the cache is bypassed, reducing the risk of data loss.
   • DWrite performance improves because data is written directly to the drives without cache overhead.
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5. 9foundation · easy

   Which component in a PowerEdge server is primarily responsible for executing instructions and coordinating the data flow between input, processing, and output?

   • AStorage controller
   • BCPU
   • CMemory
   • DNetwork interface
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6. 10foundation · easy

   What is the role of an interrupt in a PowerEdge server?

   • ATo notify the CPU that an event requires attention
   • BTo transfer data directly to memory
   • CTo increase the memory bus speed
   • DTo manage power consumption
   Reveal Solution Discussion Select an answer first