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+1 vote
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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? 

in Computer Networks by Active (2.4k points)
edited by | 993 views
+2
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.
0
SMTP- for mail transfer

DHCP- for file transfer
0
what is IRC??
+1
IRC is I think Internet Relay Channel used like a messenger sort of
+2
@srestha.. what has DHCP to do with File transfer ?
0

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

+1
SMTP, DNS, DHCP??

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