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CompTIA Exam CV0-003 Topic 4 Question 80 Discussion

Actual exam question for CompTIA's CV0-003 exam
Question #: 80
Topic #: 4
[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 Quentin at May 01, 2024, 01:41 PM

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Elise
3 months ago
Good point. Upgrading the NICs, option A, seems like hardware-related, not VM specific.
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Earleen
3 months ago
SR-IOV can improve network performance by enabling direct access to the NIC.
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Mariko
3 months ago
Why SR-IOV?
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Earleen
3 months ago
I'd guess it's C) Enabling SR-IOV capability?
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Mariko
3 months ago
It's tricky since it involves both network throughput and latency.
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Elise
4 months ago
What's your take on this integration app question?
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