Routing Protocols

Question 1

What does OSPF use as it’s routing metric

Answer 1

Cost

Question 2

What is OSPF cost based on?

Answer 2

Bandwidth

Question 3

Which routing protocol support load balancing over equal cost and unequal cost paths?

Answer 3

EIGRP

Question 4

What command can you use to manually configure OSPF cost of a path to an interface?

Answer 4

ip ospf cost [path cost value]

Question 5

What is used to determine whether EIGRP feasible successors can be used for unequal cost load balancing?

Answer 5

Variance

Question 6

Which routing protocol process ID is locally significant to the router and can be any positive integer from 1 through 65535

Answer 6

OSPF

Question 7

What command do you use to specify OSPF process id ?

Answer 7

router ospf {process id value]

Question 8

What two timer have to match for two routers to forma an adjacency?

Answer 8

Hello and Dead timers

Question 9

what is the command to manually configure the OSPF Hello timer?

Answer 9

ip ospf hello-interval [seconds]

Question 10

What is the command to manually configure the OSPF Dead timer?

Answer 10

ip ospf dead-interval [seconds]

Question 11

What is the default maximum number of equal cost OSPF paths?

Answer 11

4

Question 12

What command can you use to override the default number of equal cost OSPF paths to insert into a routing table?

Answer 12

maximum-paths [maximum value] in OSPF router configuration mode

Question 13

What command is used to specify which interfaces will participate in OSPF and which networks should be advertised?

Answer 13

network command

Question 14

Will routers with different OSPF process IDs establish an adjaceny?

Answer 14

Yes. The OSPF process ID is locally significant to the router.

Question 15

What command is used to specify the OSPF process id?

Answer 15

router ospf [process id]

Question 16

What has to match for two OSPF router to form an adjacency?

Answer 16

Ospf area, Hello timers, and Dead timers

Question 17

In OSPF, What is used to specify the amount of time to wait for hello packets before declaring a neighbor to be down?

Answer 17

Dead timer which is 4 times the hello timer value

Question 18

What is the default value for a Hello timer on a point to point link?

Answer 18

10 seconds

Question 19

What is the default value for a Hello timer on a nonbroadcast multiaccess (NBMA) link?

Answer 19

30 seconds

Question 20

What command is used to view the routing table?

Answer 20

show ip route

Question 21

When will EIGRP not load balance to a route?

Answer 21

Variance is equal to 1 or a route is not considered a successor or feasible successor

Question 22

In EIGRP, what is the best route to a network?

Answer 22

Successor

Question 23

In EIGRP, what is a backup route that can be used if the successor route goes down?

Answer 23

Feasible successor

Question 24

What is the default value of a FastEthernet interface?

Answer 24

10

Question 25

Where are eigrp feasible successor listed?

Answer 25

eigrp topology table

Question 26

what is the command to display the eigrp topology table?

Answer 26

show ip eigrp topology

Question 27

In EIGRP, what are K values sue for ?

Answer 27

to calculate the metric

Question 28

In EIGRP, where are successor routes listed?

Answer 28

routing table

Question 29

What ip address are EIGRP query packets sent to?

Answer 29

multicast address 224.0.0.10

Question 30

If no feasible successors exist, how is a route re-computation initiated?

Answer 30

by sending out multicast query packets