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Your company registers a domain name of contoso.com.
You create an Azure DNS zone named contoso.com, and then you add an A record to the zone for a host named www that has an IP address of 131.107.1.10.
You discover that Internet hosts are unable to resolve www.contoso.com to the 131.107.1.10 IP address.
You need to resolve the name resolution issue.
Solution: You modify the SOA record in the contoso.com zone
Does this meet the goal?
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A. B.B
Modify the NS record, not the SOA record.
Note: The SOA record stores information about the name of the server that supplied the data for the zone; the administrator of the zone; the current version of the data file; the number of seconds a secondary name server should wait before checking for updates; the number of seconds a secondary name server should wait before retrying a failed zone transfer; the maximum number of seconds that a secondary name server can use data before it must either be refreshed or expire; and a default number of seconds for the time-to-live file on resource records.
https://searchnetworking.techtarget.com/definition/start-of-authority-recordNo, modifying the SOA record in the contoso.com zone will not resolve the name resolution issue for www.contoso.com. The SOA record is used for the Start of Authority for the DNS zone and contains administrative information about the DNS zone. It does not contain any information about resolving hostnames to IP addresses.
To resolve the name resolution issue, you should verify that the A record for www.contoso.com exists in the contoso.com DNS zone and that it has the correct IP address of 131.107.1.10. You should also verify that the DNS settings for the client machines or devices trying to resolve the hostname are configured to use the Azure DNS zone as the authoritative DNS server for the contoso.com domain.
Additionally, you should ensure that the Azure DNS zone is configured correctly with the appropriate NS records and that the domain registrar is configured to use the Azure DNS zone as the authoritative DNS server for the contoso.com domain.