Volume 1 - Chapter 17: Configuring IPv4 Addresses and Static Routes

Question 1

The code of * next to a route indicates what?

Answer 1

That the route is a candidate for the default route.

Question 2

When checking the routing table on a router, it contains 2 routes to the following subnets:
O IA 172.16.10.0/26 [110/3] via 172.16.5.3
S 172.16.10.4/32 [1/0] via 172.16.4.2

Which route will be preferred when trying to route a packet to the PC 172.16.10.4?

Answer 2

The static route to via 172.16.4.2. When 2 routes exist that have subnet overlap, the more specific route is chosen.

Question 3

When checking the routing table on a router, it contains 2 routes to the subnet 192.168.21/28 via 2 different paths. How does the route decide which route to use?

Answer 3

The route with the lowest administrative distance will be chosen.

Question 4

An existing route to the subnet 10.2.3.128/25 is learned via OSPF. What is the command to configure a floating static route to the same subnet via the interface Gi1/2 with an administrative distance of 140?

Answer 4

ip route 10.2.3.128 255.255.255.128 Gi1/2 140

Question 5

A technician configures a static route as the following:

ip route 172.23.32.5 255.255.224.0 192.168.50.3

It is rejected by the router. Why?

Answer 5

The static route configured is for a specific host rather than the subnet ID. The correct route would be:

ip route 172.23.32.0 255.255.224.0 192.168.50.3

Question 6

A technician wants to configure a route to 192.168.17.0 /24 via its Te1/0/3 interface, but still wants the route to persist in the routing table if the interface is down. What is the correct command to configure?

Answer 6

ip route 192.168.17.0 255.255.255.0 Te1/0/3 permanent