2 votes 2 votes If you are hosting an email service on your server with some domain name with many local nodes, what service is absolutely essential? 1.DNS 2.SMTP 3.DHCP 4.IRC Multiple options can be right? Computer Networks iit-kanpur interview written-test + – MIRIYALA JEEVAN KUMA asked Feb 9, 2018 edited Feb 9, 2018 by MIRIYALA JEEVAN KUMA MIRIYALA JEEVAN KUMA 1.6k views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply sumit chakraborty commented Feb 9, 2018 reply Follow Share I think SMTP and DNS are absolutely necessary for the server to send email and the domain address to be resolved. If only one has to be answered SMTP should be it because you can get to a server by using ip address but without SMTP email can't work. 2 votes 2 votes srestha commented Feb 9, 2018 reply Follow Share SMTP- for mail transfer DHCP- for file transfer 0 votes 0 votes srestha commented Feb 9, 2018 reply Follow Share what is IRC?? 0 votes 0 votes sumit chakraborty commented Feb 10, 2018 reply Follow Share IRC is I think Internet Relay Channel used like a messenger sort of 1 votes 1 votes Arunav Khare commented Feb 10, 2018 reply Follow Share @srestha.. what has DHCP to do with File transfer ? 2 votes 2 votes srestha commented Feb 10, 2018 reply Follow Share DHCP broadcast a packet. right? DHCP do conversion from MAC to IP. By fixed address dhcpd documentation,DD-WRT, DHCP reservation all can be done by DHCP 0 votes 0 votes G Shaheena commented Feb 12, 2018 reply Follow Share SMTP, DNS, DHCP?? 1 votes 1 votes Please log in or register to add a comment.