Questions

1. What is the official agreement between an ISP and a customer referred to as?
2. Suppose we have a multi-WAN setup. If our primary connection goes down and we find we cannot access a site through its name, but can access it through its IP address, what is the likely cause?
3. Again, suppose we have a multi-WAN setup. If our primary connection goes down and our secondary connection is up, but we cannot access the internet, what are the possible causes? Identify at least one cause.
4. Suppose we have a multi-WAN setup with a satellite internet connection as our secondary connection. If the secondary connection is set to down by pfSense even though internet connectivity is possible through this connection, what is the likely cause?
5. (a) Why do we normally have to create static routes for DNS servers in a multi-WAN setup? (b) How can we avoid having to create static routes for DNS...