What are two drawbacks of implementing a link-state routing protocol?
The requirement for a hierarchical IP addressing scheme for optimal functionality. The high demand on router resources to run the link-state routing algorithm.
The ip helper-address command does what?
relays a DHCP request across networks.
What is the default administrative distance of the OSPF routing protocol?
Which statements are true about EIGRP successor routes?
A successor route is used by EIGRP to forward traffic to destination. A successor route may be backed up by a feasible successor route.
A router is running three routing processes: RIP, OSPF, and EIGRP, each configured with default characteristics. Each process learns a route to the same remote network. If there are no static routes to the destination and none of the routes wereredistributed, which route will be placed in the IP routing table?
prevents invalid updates from looping the internetwork indefinitely
causes a routing protocol to advertise an infinite metric for a failed route
decreases convergence time by immediately sending route information in response to a topology change
A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?
the EIGRP route
Which parameter can be tuned to affect the selection of a static route as a backup, when a dynamic protocol is also being used?
A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency. The retransmit interval and the queue counts for the adjacent routers also need to be checked. What command will display the required information?
Router# show ip eigrp neighbors
Why do large OSPF networks use a hierarchical design?
to confine network instability to single areas of the network. to speed up convergence. to reduce routing overhead.
On a live network, which commands will verify the operational status of router interfaces?
Router# show interfaces Router# show ip interface brief
Which two are advantages of static routing when compared to dynamic routing?
Security increases because only the network administrator may change the routing tables. Routing traffic load is reduced when used in stub network links
Which characteristics are representative of a link-state routing protocol?
provides common view of entire topology. calculates shortest path. utilizes event-triggered updates.
The command ip route 192.168.100.160 255.255.255.224 192.168.10.2 20 was performed on a router. No routing protocols or other static routes are configured on the router. Which statement best describes this command?
Packets that are destined for host 192.168.100.190 will be sent to 192.168.10.2.
Which command is used to display the collection of OSPF link states?
show ip ospf database
What command sequence will configure a router to run OSPF and add network 10.1.1.0 /24 to area 0?
router ospf 1 network 10.1.1.0 0.0.0.255 area 0
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