Why should you set the "register this connection's addresses in dns" option? a) so that the computer's name and address are added to the dns database automatically b) this option is not typically set c) so that the nic receives a dns address from dhcp d) to disable dynamic dns for that computer e) so that you can query multiple domains when looking up a computer name.

You should set the register this connection's addresses in DNS option so that the computer's name and address are added to the DNS database automatically. LETTER A

Explanation:

Because, if you have a DNS server on your internal network, you should configure that DNS server to support internet host name resolution.  If the DNS configuration on your ISA firewall is incorrect, you will experience connectivity problems.