What are DNS records and DNS architecture. And tell us about the email achitecture and the protocols and their port no.

Question

Accepted Answer

DNS records are used to map domain names to IP addresses. DNS architecture consists of DNS servers and the hierarchical structure of the DNS system.

DNS records are used to translate domain names into IP addresses.
DNS architecture includes DNS servers and the hierarchical structure of the DNS system.
Email architecture involves the use of mail servers, email clients, and protocols for sending and receiving emails.
Common email protocols include SMTP (port 25), POP3 (port 110), and IMAP (port 143).

Accepted Answer

Just google these questions there are readily available answers and study material.

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