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CompTIA Exam CV0-003 Topic 5 Question 87 Discussion

Actual exam question for CompTIA's CV0-003 exam
Question #: 87
Topic #: 5
[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 Catrice at Jul 18, 2024, 12:15 PM

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Erasmo
5 months ago
Adding more vCPU or increasing VM swap size won't necessarily improve network throughput, right?
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Shanice
5 months ago
Haha, increasing the VM swap/paging size? That's like trying to fix a leaky faucet with duct tape. Not a real solution in this case.
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Teddy
5 months ago
But wouldn't adding more vCPU also help improve performance? I'm not sure if that's the best option here.
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Jenelle
3 months ago
Adding more vCPU might not be the best option for maintaining network throughput and latency.
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Lachelle
3 months ago
C) Enabling SR-IOV capability
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Corazon
3 months ago
A) Upgrading the physical server NICs to support 10Gbps
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Lavonna
3 months ago
Adding more vCPU might not be the best option for maintaining network throughput and latency.
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Huey
3 months ago
C) Enabling SR-IOV capability
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Ciara
4 months ago
A) Upgrading the physical server NICs to support 10Gbps
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Crissy
5 months ago
I think option C is the way to go. Enabling SR-IOV will help maintain the same level of network throughput and latency in the virtual server.
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Desirae
4 months ago
I think upgrading the physical server NICs to support 10Gbps is the way to go.
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Leota
4 months ago
I agree, enabling SR-IOV capability is the best option.
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Alberta
5 months ago
That's true, but SR-IOV can provide direct access to the physical NIC for better performance.
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Tiera
5 months ago
But wouldn't upgrading the physical server NICs to support 10Gbps also be a good option?
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Erasmo
5 months ago
I agree with Alberta, SR-IOV can help maintain network throughput.
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Alberta
5 months ago
I think we should consider enabling SR-IOV capability.
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