OSINT 2 (E)

Let’s check your port knowledge!

1. An administrator turns on a computer to request an IPv4 address.
   What port does a DHCP server use to reply to the request?

   Correct

   Incorrect
   
   

   ---

2. Border Gateway Protocol V4 (BGP4) uses what protocol and port on the public Internet?

   Correct

   Incorrect
   
   

   ---

3. In IPSec, IKE uses what protocol and port number to exchange information if NAT translation is not involved?

   Correct

   Incorrect

   Don't forget to include the protocol and port!
   i.e. TCP 443

   
   

   ---

4. Microsoft SQL Server uses what port to communicate over a firewall?
   What is the default SQL Server port?

   Correct

   Incorrect
   
   

   ---

5. Whois uses what protocol and port?

   Correct

   Incorrect

   Don't forget to include the protocol and port!
   i.e. TCP 443