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Answer: comp2.contoso.com only
The correct answer is C: comp2.contoso.com only. This is because comp2.contoso.com is the only DNS record of type 'A' that maps directly to an IPv4 address. Other DNS record types such as 'TXT', 'CNAME', and 'PTR' are not used for direct IP address resolution in this context. A 'TXT' record is used for domain ownership verification, a 'CNAME' record is an alias pointing to another domain name which in this case does not resolve to an IP, and a 'PTR' record is used for reverse DNS lookup mapping an IP address to a domain name.
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In a setup with Azure virtual machines and a private DNS zone 'contoso.com', identify the DNS names from the provided records that can be used to successfully ping VM2 from VM1.
A
comp2.contoso.com and comp4.contoso.com only
B
comp1.contoso.com, comp2.contoso.com, comp3.contoso.com, and comp4.contoso.com
C
comp2.contoso.com only
D
comp1.contoso.com and comp2.contoso.com only
E
comp1.contoso.com, comp2.contoso.com, and comp4.contoso.com only