Routers: operate at the application layer operate only at the physical layer cannot connect two or more networks that use the same type of cable may also be called tcp/ip gateways operate only at the data link layer.

The correct option to the following question is option (D) may also be called TCP/IP gateways.

Explanation:

Commonly, Internet Protocol routers are referred to as the internet gateways because between the networks the routers use an IP address for routing the packets.

In the TCP/IP structure, the router works at several layers and also the router can select their path for the flow of the data because they know where is the other routers.

try restarting the ps as a whole. i have one and i recently had the same issue, if that doesn't work it may be that your dad need to renew the contract.

explanation: