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Question 147 - Professional Cloud DevOps Engineer discussion

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You are monitoring a service that uses n2-standard-2 Compute Engine instances that serve large files. Users have reported that downloads are slow. Your Cloud Monitoring dashboard shows that your VMS are running at peak network throughput. You want to improve the network throughput performance. What should you do?

A.
Deploy a Cloud NAT gateway and attach the gateway to the subnet of the VMS.
Answers
A.
Deploy a Cloud NAT gateway and attach the gateway to the subnet of the VMS.
B.
Add additional network interface controllers (NICs) to your VMS.
Answers
B.
Add additional network interface controllers (NICs) to your VMS.
C.
Change the machine type for your VMS to n2-standard-8.
Answers
C.
Change the machine type for your VMS to n2-standard-8.
D.
Deploy the Ops Agent to export additional monitoring metrics.
Answers
D.
Deploy the Ops Agent to export additional monitoring metrics.
Suggested answer: C

Explanation:

The correct answer is C) Change the machine type for your VMs to n2-standard-8.

According to the Google Cloud documentation, the network throughput performance of a Compute Engine VM depends on its machine type1. The n2-standard-2 machine type has a maximum egress bandwidth of 4 Gbps, which can be a bottleneck for serving large files. By changing the machine type to n2-standard-8, you can increase the maximum egress bandwidth to 16 Gbps, which can improve the network throughput performance and reduce the download time for users. You also need to enable per VM Tier_1 networking performance, which is a feature that allows VMs to achieve higher network performance than the default settings2.

The other options are incorrect because they do not improve the network throughput performance of your VMs. Option A is incorrect because Cloud NAT is a service that allows private IP addresses to access the internet, but it does not increase the network bandwidth or speed3. Option B is incorrect because adding additional network interfaces (NICs) or IP addresses per NIC does not increase ingress or egress bandwidth for a VM1. Option D is incorrect because deploying the Ops Agent can help you monitor and troubleshoot your VMs, but it does not affect the network throughput performance4.

Cloud NAT overview, Cloud NAT overview. Network bandwidth, Bandwidth summary. Installing the Ops Agent, Installing the Ops Agent. Configure per VM Tier_1 networking performance, Configure per VM Tier_1 networking performance.

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asked 18/09/2024
Mark Anthony Mondonedo
32 questions
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