Hotspot Question
You have a server named Server1 that runs Windows Server 2016 Server1 is a Hyper-V host You
have two network adapter cards on Server1 that are Remote Direct Memory Access (RDMA) –
capable. You need to aggregate the bandwidth of the network adapter cards for a virtual machine
on Server1. The solution must ensure that the virtual machine can use the RDMA capabilities of
the network adapter cards. Which command should you run first? To answer, select the appropriate
options in the answer area.
Answer: 
Answer is correct.
https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v-virtual-switch/rdma-and-switch-embedded-teaming
Create a Hyper-V Virtual Switch with SET and RDMA vNICs
To make use of RDMA capabilies on Hyper-V host virtual network adapters (vNICs) on a Hyper-V Virtual Switch that supports RDMA teaming, you can use these example Windows PowerShell commands.
New-VMSwitch -Name SETswitch -NetAdapterName “SLOT 2″,”SLOT 3” -EnableEmbeddedTeaming $true
Read your reasoning carefully. You just showed it is incorrect. The answer says Add-VmSwitch and in your answer it’s New-VMSwitch.