TELECOMMUNICATIONS SYSTEMS
NETWORK ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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serves the basic function of DNS server which is to map a hostname string into its IP address.
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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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is used specifically for the purpose of sending email.
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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 DNS ‘mail exchange’ (MX) record directs email to a mail server. The MX record indicates how email messages should be routed in accordance with the Simple Mail Transfer Protocol (SMTP, the standard protocol for all email). Like CNAME records, an MX record must always point to another domain.
Detailed explanation-2: -An MX record, or mail exchange record, is a DNS record that routes emails to specified mail servers. MX records essentially point to the IP addresses of a mail server’s domain. MX records are especially useful for users who host or lease an email because it differentiates web and email servers.
Detailed explanation-3: -Mail Exchange (MX) records are DNS records that are necessary for delivering email to your address. In simple DNS terms, an MX record is used to tell the world which mail servers accept incoming mail for your domain and where emails sent to your domain should be routed to.
Detailed explanation-4: -MX Records, or Mail Exchange records are DNS records that are necessary for delivery of emails to any address. In essence, the MX record exists so that anyone can understand which server your mail should be delivered to, and where the emails which are sent to your domain should be routed to.
Detailed explanation-5: -A mail exchanger record (MX record) specifies the mail server responsible for accepting email messages on behalf of a domain name. It is a resource record in the Domain Name System (DNS).