Exam AZ-720 topic 5 question 15 discussion

Actual exam question from Microsoft's AZ-720

Question #: 15
Topic #: 5

A company migrates existing Ubuntu Linux servers from their on-premises vSphere infrastructure to Azure.

The virtual machines (VMs) are experiencing a low network throughput of 20 Mbps. The VMs are expected to sustain 300 Mbps.

You need to ensure that the VMs are compatible with Azure.

Which change should you make?

A. Configure the network interfaces to 1000 Mbps/full duplex.
B. Increase the TCP buffers and window size kernel parameters.
C. Redeploy the VM with Accelerated Networking enabled.
D. Install a kernel name that ends with -azure.

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Suggested Answer: C 🗳️

by terawatt at July 21, 2023, 3:05 p.m.

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terawatt

1 year, 11 months ago

Selected Answer: C

Azure Accelerated Networking is a feature that significantly enhances the performance you get out of a virtual machine. This feature enables a high-performance path and bypasses the host from the datapath, reducing latency, jitter, and CPU utilization, for use with the most demanding network workloads on supported VM types. Therefore, the correct option here would be: C. Redeploy the VM with Accelerated Networking enabled. This should allow the VMs to reach their expected network throughput. It should be noted that certain VM sizes are needed to use Accelerated Networking, so one should ensure that the VMs being used are of the supported size.

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