What is the term for the router on a local network that routes packets to remote destination network

What is the term for the router on a local network that routes packets to remote destination
networks?

A.
Proxy server

B.
Default gateway

C.
Domain controller

D.
Forwarding server

Explanation:
The default gateway is the router address used to forward packets to another subnet, i.e. remote
destination network. When a packet has to be shipped, the subnet mask is used to remove the
host bits of the destination address, and if the resulting network of the destination does not match

the current network, the packet is shipped to the default gateway.
Incorrect Answers:
A: A proxy server is used to connect two networks, usually (but not required) one of the networks
is the Internet. The proxy server reissues all the IP requests on behalf of the clients it is servicing.
The proxy server is not a router, although some of its functions appear as routing functions.
C: A domain controller is a server that services the logon requests of clients. Although routing
services can be run on a domain controller so that the domain controller can perform routing, this
is no the main function of a device called a domain controller. This is a routing function.
D: A forwarding server refers to a type of DNS server, which does not involve routing functions.