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Exam 70-741 topic 2 question 10 discussion

Actual exam question from Microsoft's 70-741

Question #: 10
Topic #: 2

You have Hyper-V host named Server1.
Server1 has a network adapter that has virtual machine queue (VMQ) enabled. The network adapter connects at 10 Gbps and has an IPV4 address.
Server1 hosts a virtual machine named VM1. VM1 has a single network adapter and four processors.
You need to distribute the network processing load across the VM1 processors.
What should you do?

A. From Windows PowerShell on Server1, run the Enable-NetAdapterPacketDirect cmdlet.
B. From Windows PowerShell on VM1, run the Enable-NetAdapterPacketDirect cmdlet.
C. From Device Manager on VM1, configure Receive Side Scaling.
D. From Windows PowerShell on Server1, run the Enable-NetAdapterRSS cmdlet.

Show Suggested Answer

Suggested Answer: C 🗳️
References:
https://docs.microsoft.com/en-us/windows-server/networking/technologies/vrss/vrss-enable

by dangerrox at Nov. 4, 2019, 6:35 p.m.

Comments

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Otis

Highly Voted 5 years, 7 months ago

Enable-NetAdapterRSS would need to be run on the VM, not the host. C is correct.

upvoted 11 times

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Person

Highly Voted 5 years, 7 months ago

I think the correct answer is "C. From Device Manager on VM1, configure Receive Side Scaling." We can configure in VM of two ways. On VM1 executed Enable-NetAdapterRSS or On VM1 configure in Device Manager Receive Side Scaling. Enable-NetAdapterRss cmdlet enables receive side scaling (RSS) on a network adapter. RSS is a scalability technology that distributes the receive network traffic among multiple processors by hashing the header of the incoming packet. Without RSS in firstref_longhorn and later, network traffic is received on the first processor which can quickly reach full utilization limiting receive network throughput. Virtual RSS (vRSS) requires Virtual Machine Queue (VMQ) support from the physical adapter. If VMQ is disabled or is not supported then Virtual Receive-side scaling is disabled.

upvoted 11 times

PatS

5 years, 7 months ago

I agree. In Windows Server 2016 RSS is enabled on host by default. Official book 70-741 Networking with Windows Server 2016 (page 326) "RSS has been part of the Windows Server operating system family for some time and is enabled in the operating system by default. However, not all network adapter vendors enable RSS by default on their drivers. Therefore, you must know how to enable and configure RSS."

upvoted 1 times

PatS

5 years, 7 months ago

"Enable and configure RSS Use the following procedure to enable RSS: 1. Open Device Manager. 2. Locate and right-click your network adapter. Click Properties. 3. On the Advanced tab, in the Property list, as shown in Figure 6-5, click Receive Side Scaling and in the Value list, click Enabled."

upvoted 2 times

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panda

Most Recent 4 years, 5 months ago

The answer for this kind of questions as follow is RRS. Topic 1:question 125 Topic 2:question 6 Topic 2:question 10

upvoted 1 times

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yvankarma

4 years, 7 months ago

Answer is correct, in the CBT Nugget videos, RSS can ALSO be configured in the VM's device manager, in the network adapter properties, advanced where you have all the options and such for even RDMA

upvoted 3 times

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Nhan

5 years, 5 months ago

is correct answer, on the VM NIC go to the property of the NIC and you can enable RSS or disable RSS this picture showing the setup https://www.bing.com/images/search?view=detailV2&id=3A32395353C10F33FFCFCA5ADBC280B885E50512&thid=OIP.1A_1qCEJoWL08wVTj5llKwAAAA&mediaurl=https%3A%2F%2Fmsdnshared.blob.core.windows.net%2Fmedia%2FMSDNBlogsFS%2Fprod.evol.blogs.msdn.com%2FCommunityServer.Blogs.Components.WeblogFiles%2F00%2F00%2F00%2F84%2F42%2Fmetablogapi%2F8712.image_thumb_496019AD.png&exph=353&expw=443&q=rss+on+nic&selectedindex=2&ajaxhist=0&vt=0

upvoted 1 times

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xziomal9

5 years, 6 months ago

Correct answer: C

upvoted 5 times

lbs

5 years, 3 months ago

Agree.

upvoted 2 times

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coleman

5 years, 7 months ago

focus VM1

upvoted 4 times

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dangerrox

5 years, 7 months ago

Answer should be D.

upvoted 1 times

coleman

5 years, 7 months ago

you are wrong

upvoted 4 times

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jelly_baby

5 years, 3 months ago

Read the answers carefully.

upvoted 1 times

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fattswindstorm

4 years, 5 months ago

Should be C. D is running enable-netadapterrss from server1, in order for you to run this command, you need to run it from vm1. C has you use the device manager to enable RSS from VM1, thus C is the correct answer

upvoted 1 times

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