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Exam 70-740 topic 1 question 76 discussion

Actual exam question from Microsoft's 70-740
Question #: 76
Topic #: 1
[All 70-740 Questions]

You have a server named Server1 that runs Windows Server 2016. Server1 is a Hyper-V host that hosts a virtual machine named VM1. Server1 has three network adapter cards. That connect to a virtual switch named vSwitch1. You configure NIC Teaming on VM1 as shown in the exhibit:

You need to ensure that VM1 will retain access to the network if a physical adapter card fails on Server1. What should you do?

  • A. From Hyper-V Manager on Server1, modify the settings of VM1.
  • B. From Windows PowerShell on Server1, run the Set-VmSwitch cmdlet.
  • C. From the properties of the NIC team on VM1, add the adapter named Ethernet to the NIC team.
  • D. From the properties of the NIC team on VM1, change the load balancing of the NIC team.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by hkshado at Oct. 6, 2019, 1:18 p.m.

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Frits
Highly Voted 5 years, 9 months ago
There are two ways to enable NIC Teaming in the VM: 1) In the Hyper-V Manager, in the settings for the VM, select the VM’s NIC and the Advanced Settings item, then enable the checkbox for NIC Teaming in the VM 2) Run the following Windows PowerShell cmdlet in the host with elevated (Administrator) privileges. Set-VMNetworkAdapter -VMName -AllowTeaming On https://technet.microsoft.com/en-us/windows-server-docs/networking/technologies/nic-teaming/nic-teaming
upvoted 13 times
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Izhar
Highly Voted 5 years, 6 months ago
Got this question in exam
upvoted 5 times
asmaerazgi
4 years, 8 months ago
you got all the q in the ezam
upvoted 2 times
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JBSPLAT
Most Recent 4 years, 8 months ago
Even if the NICs are teamed in the VM, if a NIC fails in the Host, the Teamed NIC in VM will loose connectivity. This setting can be changed by checking a box in the advanced features part of the VM properties in Hyper-V manager, that way VM will remain connected if one of the Physical NICs dies. ELI5 explanation in Reference 1. Microsoft steps and PS command in step 11 in Reference 2. Reference 1: https://www.nakivo.com/blog/hyper-v-network-adapters-what-why-and-how/ Reference 2: https://docs.microsoft.com/en-us/windows-server/networking/technologies/nic-teaming/create-a-new-nic-team-on-a-host-computer-or-vm#prerequisites
upvoted 1 times
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ximwoem
4 years, 9 months ago
Answer A seems to be correct. In this question, additional properties are greyed out. Team switching is 'switch independent' which is correct, but Load balancing mode is 'dynamic'. --- NIC Teaming in Windows Server 2016 supports teams with two members in VMs. You can create larger teams, but there is no support for larger teams. Every team member must connect to a different external Hyper-V Virtual Switch, and the VM's networking interfaces must be configured to allow teaming. If you are configuring a NIC Team in a VM, you must select a Teaming mode of Switch Independent and a Load balancing mode of Address Hash. --- https://docs.microsoft.com/en-us/windows-server/networking/technologies/nic-teaming/nic-teaming
upvoted 1 times
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adasko
4 years, 11 months ago
Had this q on 70-741
upvoted 2 times
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jam7272
5 years ago
PS would be Set-VMNetworkAdapter, so in this case you need to use Hyper-V Manager
upvoted 3 times
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bosunoke
5 years, 5 months ago
I think A is correct, the three host NICs are connected to vSwitch1, another switch (connecting to another host NIC is required)
upvoted 1 times
panda
5 years, 3 months ago
I agree with you basically. Operation of A is as follow. 1)In Add Hardware, add new Network Adapter which is not related to VM1 in this time. 2)From Hyper-V Manager on Server1, create virtual switch which is not related to VM1 in this time. 3)After that bind new virtual switch to VM1. This means, which A says, "modify the settings of VM1".
upvoted 3 times
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MoMoSC
5 years, 7 months ago
I believe D is correct. According to https://docs.microsoft.com/en-us/windows-server/networking/technologies/nic-teaming/nic-teaming, If you are configuring a NIC Team in a VM, you must select a Teaming mode of Switch Independent and a Load balancing mode of Address Hash. The example shows Dynamic as the load balancing mode so I say the answer is to change the balance mode.
upvoted 3 times
glukken
5 years, 6 months ago
Perhaps you didn't notice that those options are greyed out?
upvoted 3 times
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waseemsmr
5 years, 2 months ago
Correct
upvoted 1 times
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davidtld
5 years, 7 months ago
You need another physical Network adaptor assigned to VM1 as a backup
upvoted 2 times
glukken
5 years, 6 months ago
That would not work, as a team in a VM can only handle 2 NICs. You should set the NIC's to teaming mode in the Network Adapter settings (see Frits's answer), this is disabled by default. Enabling is done through answer A
upvoted 2 times
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hkshado
5 years, 9 months ago
Anyone can explain why A is the correct answer?
upvoted 3 times
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