WorksheetsStatic Routing
Total questions: 15
Worksheet time: 19mins
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
When creating static routes, under what circumstances would you use the "IP-address-of-next-router" instead of "exit-interface" ?
when the router is connected via the same interface to two or more routers
when the router is directly connected one other router
when the router is directly connected one other network
when the router is connected via the same interface to two or more networks
A network administrator has configured the above network with static routing and found PC2 not able to ping PC5, on troubleshooting it was found that the route entries on HQ router was incorrect. What could be wrong (select all wrong entries) ?
The static route for 192.168.1.16/28 network has "IP-address-to-next-router" as 172.16.10.1
The static route for 192.168.1.32/29 network has "IP-address-to-next-router" as 172.16.10.9
The static route for 192.168.1.16/28 network has "IP-address-to-next-router" as 172.16.10.2
The static route for 192.168.1.32/29 network has "IP-address-to-next-router" as 172.16.10.10
The problem was still present even after fixing the problem on HQ router, on further troubleshooting it was found that the route entries on BRANCH 2 router was incorrect. What could be wrong (select all wrong entries) ?
Route entry to 192.168.1.16/28 had "IP-address-to-next-router" as 172.16.10.2
Route entry to 192.168.1.16/28 had "IP-address-to-next-router" as 172.16.10.1
Route entry to 192.168.1.16/28 had "IP-address-to-next-router" as 172.16.10.9
Route entry to 192.168.1.16/28 had "IP-address-to-next-router" as 172.16.10.8
What are the correct static route commands that you would execute on router R1 for the above network (select all that is right).
ip route 10.1.0.0 255.255.255.0 192.168.1.1
ip route 10.2.0.0 255.255.255.0 192.168.1.1
ip route 192.168.1.0 255.255.255.252 s0/0/0
ip route 10.1.0.0 255.255.255.0 192.168.1.2
What are the correct static route commands that you would execute on router R0 for the above network (select all that is right).
ip route 20.1.0.0 255.255.255.0 192.168.1.1
ip route 20.2.0.0 255.255.255.0 192.168.1.1
ip route 20.1.0.0 255.255.255.0 s0/0/0
ip route 20.2.0.0 255.255.255.0 s0/0/0
