HOTSPOT
You have a server named Server1.Server1 runs Windows Server 2012 R2 and has the
Windows Deployment Services (WDS) server role installed.
You install the DHCP Server server role on Server1.
You need to ensure that Server1 can respond to DHCP clients and WDS clients.
What should you configure for the DHCP service and the WDS service?
To answer, configure the appropriate options in the answer area.
Answer: 
Explanation:
Shouldn’t be the “Do not listen” option disabled if it has to respond to DHCP clients ? Am I missing something ?
@ Sajmon :
WDS listens on UDP port 67. If you also want to run a DHCP server on the WDS server it will want to listen on UDP port 67 as well. Two services listening on the same port won’t work. This is why you want to make sure that WDS stops listening on port 67.
In order for clients to find the WDS server you now have to configure DHCP option 060.
http://windowsitpro.com/networking/configuring-dhcp-and-wds
The problem is that if you have both a DHCP and a PXE service on the same host, they can’t use the same listening port (dhcps, which is udp 66). In that case, the PXE standard specifies that the PXE Service can use udp 4011 as its listening port. Of course, the PXEClient must send their DHCPDISCOVER packets to that port too. The DHCP option 60, when set to “PXEClient” is used only to instruct the PXE clients to try to use a PXE Service bound on UDP port 4011.
https://www.experts-exchange.com/articles/2978/PXEClient-dhcp-options-60-66-and-67-what-are-they-for-Can-I-use-PXE-without-it.html
That web site seems to have the port listed wrong – should be UDP 67 not UDP 66 as previous post also said.