Static Routing

What are the advantages of static routing (select all that is right) ?

• The network administrator will exactly know how a router will deliver in coming packets.

• Over time, the static routing entries will become less and less accurate, and may even become completely wrong

• There is no CPU burden on the router to deal with changes to the routing table

• Routers do not advertise any of its routing table to other routers, this is a form of network security.

In what scenarios would you prefer using static routing ?

• Connecting stub networks to the internet

• Small intranets with private IP addresses

• Backup routes

• Campus networks

Router 1 needs to learn about the 56.1.18.0 /25 LAN, what command would you use on Router 1 to add this static route ?

• ip route 56.1.18.0 255.255.255.128 s0/0/0

• ip route 56.1.18.0 255.255.255.128 77.9.35.1

• ip route 56.1.18.0 255.255.255.128 fa0/0

• ip route 56.1.18.0 255.255.255.128 103.4.5.1

Two different "ip route" commands can be used to configure static routes, when should we use one and not the other ?

• When switches are used to interconnect routers, we should specify exit-interfaces

• When routers are directly connect to each-other, we should not specify exit-interfaces

• When switches are used to interconnect routers, we should specify IP-address-of-next-router

• When routers are directly connect to each-other, we should not specify IP-address-of-next-router

What do you understand by "Recursive route entries" ?

• The routing table having multiple entries to route to a single network

• The routing table having to refer to itself a second time in order to find the delivery interface

• The routing table having a single entry to a single network

• The routing table having to refer to itself a second time in order to find the IP-address-of-next-router

What command is used to display the routing table ?

• show routes

• show ip routes

• show route

• show ip route

What is the right command that will add a default route on Router 1 ?

• ip route 0.0.0.0 0.0.0.0 fa0/0

• ip route 0.0.0.0 255.255.255.255 s0/0/0

• ip route 0.0.0.0 255.255.255.255 fa0/0

• ip route 0.0.0.0 0.0.0.0 s0/0/0

What do you understand of "Route Summarisation" ?

• a technique where a single entry in the routing table can be replaced by many routing entries that cover the same range of IP addresses as the original routing entry

• a technique where a single entry is added to the routing table to deliver packets for those networks that are not present in the routing table

• a technique where multiple entries in a routing table can be replaced by one (or a few) routing entries that cover the same range of IP addresses as the original routing entries

• a technique where multiple entries are added to the routing table to deliver packets for those networks that are not present in the routing table

What are the advantages of Route Summarisation" (select all that is right) ?

• reduces the amount of RAM needed to store the routing table

• increase the amount of RAM needed to store the routing table

• increases the processing time for each incoming packets

• reduces the processing time for each incoming packets

What summary static route can be added to router R1 to cover all of the three LANs attached to router R2 ?

• ip route 98.7.7.0 255.255.255.0 s0/0/0

• ip route 98.7.6.0 255.255.255.254 s0/0/0

• ip route 98.7.6.0 255.255.254.0 s0/0/0

• ip route 98.7.6.0 255.255.255.0 s0/0/0