You work as an administrator at ABC.com. The ABC.com network consists of a single domain
named ABC.com. All servers in the ABC.com domain have Windows Server 2012 R2 installed.
The ABC.com network uses the network ID 192.168.1.0/26 and has a single DNS server named
ABC_SR07. ABC_SR07 has a Standard Primary DNS zone.
Which of the following options is the correct reverse lookup zone for the ABC.com network?
A.
192.168.1-0.in-addr.arpa
B.
192.168.1.26.in-addr.arpa
C.
26.1.168.192.in-addr.arpa
D.
1.168.192-26.in-addr.arpa
E.
0.1.168.192.in-addr.arpa
Explanation:
Octets specified in reverse order
<subnet-specific label> . <octet> . <octet> . <octet> . in-addr .arpa
http://technet.microsoft.com/en-us/library/cc961414.aspx
I’ve wasted to much time on this. Looks like answer is 0.1.168.192.in-addr.arpa
E
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Agree with Stedlar
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NOO.. the answer C is correct but with a little correction, it should be 0-26.1.168.192.in-addr.arpa
http://technet.microsoft.com/en-us/library/cc961414.aspx
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Although subnet-specific label could be comprised of any characters allowed by the authoritative DNS server, the most commonly used formats include the following:
–
/
Subnet specifies which segment of the class C IP address this network is using. Subnet mask bit count specifies how many bits the network is using for its subnet mask. Subnet ID specifies a name the administrator has chosen for the subnet.
For example, suppose that an ISP has a class C address 192.168.100.0 and has divided that address into four subnets of 62 hosts per network, with a subnet mask of 255.255.255.192, and given the first 62 host addresses to a company with the DNS name Reskit.com. The name of the classless reverse lookup zone can use any of the following syntax lines:
0 – 26.100.168.192.in – addr.arpa
0/26.100.168.192.in – addr.arpa
Subnet1.100.168.192.in – addr.arpa
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Although subnet-specific label could be comprised of any characters allowed by the authoritative DNS server, the most commonly used formats include the following:
&st minimum value of the subnet range > – &st maximum value of the subnet range >
&st subnet > / &st subnet mask bit count >
&st subnet ID >
Subnet specifies which segment of the class C IP address this network is using. Subnet mask bit count specifies how many bits the network is using for its subnet mask. Subnet ID specifies a name the administrator has chosen for the subnet.
For example, suppose that an ISP has a class C address 192.168.100.0 and has divided that address into four subnets of 62 hosts per network, with a subnet mask of 255.255.255.192, and given the first 62 host addresses to a company with the DNS name Reskit.com. The name of the classless reverse lookup zone can use any of the following syntax lines:
0 – 63.100.168.192.in – addr.arpa
0/26.100.168.192.in – addr.arpa
Subnet1.100.168.192.in – addr.arpa
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