Exam AZ-720 topic 5 question 52 discussion

Actual exam question from Microsoft's AZ-720

Question #: 13
Topic #: 5

A company deploys a new file sharing application on four Standard_D2_v3 virtual machines (VMs) behind an Azure Load Balancer. The company implements Azure Firewall.

Users report that the application is slow during peak usage periods. An engineer reports that the peak usage for each VM is approximately 1 Gbps.

You need to implement a solution that supports a minimum of 10 Gbps.

What should you do to increase the throughput?

A. Disable the Azure Firewall and implement network security groups in its place.
B. Move two of the servers behind a separate load balancer and configure round robin routing in Traffic Manager.
C. Increase the size of the VM instance.
D. Request an increase in networking quotas.

Show Suggested Answer

Suggested Answer: C 🗳️

by MarshalLaw at April 13, 2023, 9:36 a.m.

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terawatt

1 year, 11 months ago

Selected Answer: C

The best way to increase the throughput in this scenario is by increasing the size of the VM instances (Option C). In Azure, the size of the VM determines the amount of network bandwidth a VM has. Standard_D2_v3 VMs have moderate networking performance up to 1,000 Mbps (~1 Gbps). If you need a higher network throughput, you should consider a larger VM size. For example, the Standard_D16s_v3 has a network bandwidth up to 12,000 Mbps (~12 Gbps), which would meet your requirement of 10 Gbps. It's worth noting that other changes such as disabling Azure Firewall and replacing it with network security groups (Option A), or splitting servers behind different load balancers (Option B), or increasing networking quotas (Option D), do not directly increase the network throughput of individual VMs.

upvoted 1 times

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cris_exam

2 years, 2 months ago

Selected Answer: C

C - Given answer is the best approach - upgrading to a better VM size offering more throughput power is the way to go here.

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MarshalLaw

2 years, 2 months ago

Selected Answer: B

B would be the most logical options than the original answer.

upvoted 1 times

Bharat

2 years, 2 months ago

If they were in different geo regions then yes. but the problem statement does not say anything to support that theory.

upvoted 2 times

MarshalLaw

2 years, 2 months ago

You are right. It seems I misread the questions. So from what I reread is that the current scenario has 4 VMs in which each VM uses on avg. 1Gbps. You need propose a solution for 10Gbps and thus, increasing the VM instances would be a great solution. If I could remove my main comment in this question, then I would've done it myself.

upvoted 1 times

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