Your network contains an Active Directory domain named contoso.com. The domain contains a
member server named Server 1. Server1 runs Windows Server 2012 R2 and has the DHCP Server
server role installed.
You create two IPv4 scopes on Server1. The scopes are configured as shown in the following table.
The DHCP clients in Subnet_Tor can connect to the client computers in Subnet_Mtl by using an IP
address or a FQDN. You discover that the DHCP clients in Subnet_Mtl can connect to client
computers in Subnet_Tor by using an IP address only.
You need to ensure that the DHCP clients in both subnets can connect to any other DHCP client by
using a FQDN.
What should you add?
A.
The 006 DNS Servers option to Subnet_Mtl
B.
The 006 DNS Servers option to Subnet_Tor
C.
The 015 DNS Domain Name option to Subnet_Mtl
D.
The 015 DNS Domain Name option to Subnet_Tor
answer is A
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They can ping by IP, not by name. Chances are that the scope is not configured with the option 006, the IP address of the DNS servers. Option 015, is used to build the FQDN when only the host name is specified. For example
Ping worstation1.
If 0015 is set to domain name Test.com, then domain suffix will aumatically be added to form the FQDN
so “Ping Workstation1” becomes “Ping Workstation.test.com”
The problem here is not with the domain suffix, Option 015, as the question says “by using an IP address or a FQDN”, In other words they can not ping by FQDN (which means that Option 015, domain suffix wont help, as we already are using FQDN).
Whats the answer if we can not ping by FQDN? – Well, clients need a DNS Server that can resolve the names, this means that Option 006 is not configured for Mtl scop.
Difference between 006 DNS Servers and 015 DNS Domain Name:
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006 DNS Servers IP address list of available DNS servers.
015 DNS Domain Name Sets the fully-qualified domain name suffix for the client.
Option 006 DNS servers = IP Address of your DNS Server, e.g, 10.10.10.1
Option 015 DNS Domain Name = test.local, your domain name.
After reading this question, and the explanation from Luis, I have a FQH, Fully Qualified Headache. I’ll just except it on faith and move to the next question.