@demarni2023
I can see a few mistakes over here.
You are assigning the IP 192.168.10.1 as DNS server on the Pool but this IP belongs to Router. You should put there the DNS´s IP address. In my file I set the DNS IP address as 192.168.10.2
ip dhcp pool Student/Teacher
network 192.168.30.0 255.255.255.0
default-router 192.168.30.1
dns-server 192.168.10.1
ip dhcp pool IoT
network 192.168.60.0 255.255.255.0
default-router 192.168.60.1
ip dhcp pool Admin
network 192.168.90.0 255.255.255.0
default-router 192.168.90.1
dns-server 192.168.10.1
ip dhcp pool Iot
dns-server 192.168.10.1
ip dhcp pool VLAN10
network 192.168.10.0 255.255.255.0
default-router 192.168.10.1
Second issue, the DNS server is connected in a interface in trunk mode. Server does not support Trunk interface. If must be access on vlan 10.
And the DNS server must have IP address and default gateway. After that, you must be able to resolve names.
C:\>nslookup www.stedmunds.com
Server: [192.168.10.2]
Address: 192.168.10.2
Non-authoritative answer:
Name: www.stedmunds.com
Address: 192.168.10.2
