TELECOMMUNICATIONS SYSTEMS
NETWORK ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It essentially the reverse of A record where the “Name” field contains information of the IP address number and the “Data” field contains the hostname string.
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is mapping of a hostname into another hostname. and is used to create an alias for an existing A record.
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is used to point to the name of the server where a zone or domain name record is registered.
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provides information of what services are available in a particular zone or domain.
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Detailed explanation-1: -A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content.
Detailed explanation-2: -The CNAME Record is typically used alongside other types of DNS Records-A Records and ALIAS Records. An A Record maps a hostname to one or more IP addresses, while the CNAME record maps a hostname to another hostname.
Detailed explanation-3: -Canonical Name record (CNAME Record)-can be used to alias a hostname to another hostname. When a DNS client requests a record that contains a CNAME, which points to another hostname, the DNS resolution process is repeated with the new hostname.
Detailed explanation-4: -To add an alias (CNAME) resource record to a zone In the console tree, double-click Forward Lookup Zones, right-click the forward lookup zone where you want to add the Alias resource record, and then click New Alias (CNAME).