Explain the Cooling and Thermal Considerations in PowerEdge Servers (Direct Liquid Cooling, Immersion Cooling, Air Cooling) POWEREDGE-FOUNDATIONS-V2 Practice Questions (Page 5)

Questions 21–25

1. 21expert · hard

   A high-performance computing (HPC) center is evaluating immersion cooling for a new cluster. The center has a limited budget and is concerned about the total cost of ownership (TCO). The cluster will run a mix of CPU and GPU nodes. Which factor should be the primary consideration when deciding between single-phase and two-phase immersion cooling?

   • AThe server's warranty status
   • BThe facility's available floor space
   • CThe cost and complexity of the fluid management system
   • DThe color of the immersion fluid
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A research lab is deploying a cluster of PowerEdge XE9680 servers with high-end GPUs for AI training. The data center has limited floor space but abundant chilled water supply. The lab wants to maximize GPU performance and reduce the energy consumed by server fans. Which cooling solution should they choose?

   • ASingle-phase immersion cooling
   • BTwo-phase immersion cooling
   • CDirect liquid cooling (DLC) with cold plates attached to CPUs and GPUs
   • DAir cooling with high-static-pressure fans
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A company is considering immersion cooling for a small cluster of PowerEdge servers. They are concerned about the maintenance complexity. Which aspect of immersion cooling is most likely to require specialized maintenance?

   • AHandling and disposal of the dielectric fluid
   • BCleaning the air filters
   • CReplacing server fans
   • DUpdating the server BIOS
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   In a Direct Liquid Cooling (DLC) system for a PowerEdge server, what is the function of the cold plate?

   • ATo store coolant for the entire liquid cooling loop
   • BTo cool the air before it enters the server chassis
   • CTo absorb heat directly from the CPU and transfer it to the coolant
   • DTo monitor the temperature of the coolant
   Reveal Solution Discussion Select an answer first
6. 25expert · hard

   A company is deploying a rack of PowerEdge servers with direct liquid cooling (DLC). The facility's chilled water supply is limited, and the water temperature is higher than the recommended range for DLC. The servers are critical and must not throttle. What should the administrator do?

   • AInstall a coolant distribution unit (CDU) to regulate the coolant temperature
   • BSwitch to air cooling for these servers
   • CIncrease the server fan speed to compensate
   • DReduce the server power consumption
   Reveal Solution Discussion Select an answer first