Imagine an enterprise network, an example of campus network, which is composed of 4 buildings interconnected. Each building has its own LAN and the LANs are interconnected via 4 routers. Also, there is a WAN link that provides Internet access through an ISP. Answer the following questions.

-On R4 (Router 4), a default route to the Internet can be added to its routing table by entering:
A) "ip route 0.0.0.0 0.0.0.0 Fa0/0"
B) "ip route 1.1.1.1 1.1.1.1 Fa0/0"
C) "ip route 255.255.255.255 255.255.255.255 Fa0/0"
D) "ip route 0.0.0.0 255.255.255.255 Fa0/0"
E) "ip route 1.1.1.1 255.255.255.255 Fa0/0"

Question

Imagine an enterprise network, an example of campus network, which is composed of 4 buildings interconnected. Each building has its own LAN and the LANs are interconnected via 4 routers. Also, there is a WAN link that provides Internet access through an ISP. Answer the following questions.
 
-On R4 (Router 4), a default route to the Internet can be added to its routing table by entering:
A) "ip route 0.0.0.0 0.0.0.0 Fa0/0" 
B) "ip route 1.1.1.1 1.1.1.1 Fa0/0" 
C) "ip route 255.255.255.255 255.255.255.255 Fa0/0" 
D) "ip route 0.0.0.0 255.255.255.255 Fa0/0" 
E) "ip route 1.1.1.1 255.255.255.255 Fa0/0"

Quizplus · Accepted Answer

A default route is used to forward packets for which no specific route is known, so any packet with a destination IP that is not in the routing table will be sent via the default route. The command "ip route 0.0.0.0 0.0.0.0 Fa0/0" adds a default route to the Internet via the Fa0/0 interface of R4, which is the WAN link connecting to the ISP. The other options are not correct because they refer to specific IP addresses or network masks that do not match the purpose of a default route.

Imagine an Enterprise Network, an Example of Campus Network, Which