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CompTIA Exam CV0-003 Topic 3 Question 82 Discussion

Actual exam question for CompTIA's CV0-003 exam
Question #: 82
Topic #: 3
[All CV0-003 Questions]

An integration application that communicates between different application and database servers is currently hosted on a physical machine. A P2V migration needs to be done to reduce the hardware footprint. Which of the following should be considered to maintain the same level of network throughput and latency in the virtual server?

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Suggested Answer: C

SR-IOV stands for Single Root I/O Virtualization, which is a technology that allows a physical network adapter to be partitioned into multiple virtual functions (VFs) that can be directly assigned to virtual machines (VMs). This way, the network traffic bypasses the software layer of the hypervisor and the virtual switch, and goes directly from the VM to the physical adapter. This reduces the CPU overhead, the network latency, and the packet loss, and improves the network throughput and scalability. SR-IOV can achieve near-native performance for network-intensive applications, such as an integration application that communicates between different application and database servers. By enabling SR-IOV capability on the physical server and the virtual server, the P2V migration can maintain the same level of network throughput and latency as the original physical machine.Reference:High performance network virtualization with SR-IOV;Supercharge Your Network Throughput via Single Root I/O Virtualization (SR-IOV);Overview of Single Root I/O Virtualization (SR-IOV).


by Hubert at May 22, 2024, 12:47 AM

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Fallon
7 months ago
B) Adding more vCPU might help, but it won't directly address the network performance requirements. C) is the way to go here.
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Huey
7 months ago
Haha, D) Increasing the VM swap/paging size? That's like trying to fix a leaky faucet by turning up the water pressure!
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Mireya
7 months ago
A) Upgrading the physical server NICs to support 10GbpS could also be a good choice. This would increase the overall network bandwidth and improve throughput.
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Luisa
7 months ago
C) Enabling SR-IOV capability seems like the best option to maintain network performance. This will allow the virtual server to bypass the hypervisor and communicate directly with the physical network hardware.
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Deonna
5 months ago
D) Increasing the VM swap/paging size won't have a direct impact on network throughput or latency.
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Marsha
5 months ago
C) Enabling SR-IOV capability is the most efficient way to ensure network performance remains consistent.
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Alline
5 months ago
A) Upgrading the physical server NICs is a good idea, but SR-IOV would provide a more direct solution.
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Bronwyn
6 months ago
B) Adding more vCPU might help with overall performance, but it won't necessarily improve network throughput.
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Georgiana
6 months ago
C) Enabling SR-IOV capability is definitely the way to go for maintaining low latency.
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Leatha
6 months ago
A) Upgrading the physical server NICs to support 10Gbps could also help improve network throughput.
upvoted 0 times
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Kristin
7 months ago
C) Enabling SR-IOV capability seems like the best option to maintain network performance.
upvoted 0 times
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