EIGRP

Question 1

Reported Distance (RD)

Answer 1

Also known as advertised distance. It is the distance to a destination network reported by an upstream neighboring router

Question 2

Path Cost

Answer 2

The total cost from a source router to a destination network

Question 3

Feasible distance

Answer 3

The lowest path cost from a source router to a destination network

Question 4

Feasibility condition

Answer 4

Means that the reported distance (RD) must be less than the feasible distance (FD)

Question 5

Successor

Answer 5

The actual route that will be placed in the routing table of EIGRP routers

Question 6

Feasible successor

Answer 6

The next best alternate route to a destination network

Question 7

IOS commands to troubleshoot EIGRP queries

Answer 7

show ip eigrp topology
debug eigrp fsm
debug eigrp packet update reply query

Question 8

Stub router

Answer 8

A router that does not forward EIGRP learned routes nor receive queries queries from non-stub routers

Question 9

What are the two types of EIGRP load balancing?

Answer 9

Equal Metric

Unequal-Metric

Question 10

IOS command to view EIGRP topology table

Answer 10

show ip eigrp topology

Question 11

EIGRP packet header protocol number

Answer 11

88

Question 12

What multicast address does EIGRP use?

Answer 12

224.0.0.10

Question 13

Command to view EIGRP neighbors of a router

Answer 13

show ip eigrp neighbors

Question 14

Command to configure/start the EIGRP process

Answer 14

router eigrp autonomous-system-number

example: router eigrp 100

Question 15

Command to include a local interface in the EIGRP process

Answer 15

network ip-address [wildcard-mask]

the wildcard mask is optional

Question 16

Command to include all interfaces in the EIGRP process

Answer 16

network 0.0.0.0 255.255.255.255

Question 17

List the benefits provided by EIGRP stub routers

Answer 17

1. improves network stability
2. reduces resource utilization
3. simplifies remote router configuration

Question 18

Command to examine router table in order to identify EIGRP routes

Answer 18

show ip route

Question 19

Default time in which a router waits to receive a reply to a query

Answer 19

Three minutes, after which the router will go into SIA state.

Question 20

Commands to enable equal cost load balancing

Answer 20

router eigrp #
network x.x.x.x
maximum-paths #

Question 21

How to compute variance for unequal cost load balancing

Answer 21

highest path cost of the link to include/smallest cost path

Question 22

Commands to enable unequal load balancing by defining variance multiplier

Answer 22

router eigrp #

variance #

Question 23

Display interfaces that have been enabled for EIGRPv6

Answer 23

show ipv6 eigrp interfaces

Question 24

Display ipv6 neighbor information

Answer 24

show ipv6 neighbors

Question 25

Display entries in the ipv6 topology table

Answer 25

show ipv6 eigrp topology

Question 26

Display the ipv6 routing table

Answer 26

show ipv6 route

Question 27

Display ipv6 protocols configured on the router

Answer 27

show ipv6 protocols

Question 28

Display ipv6 interface status and addressing assignments

Answer 28

show ipv6 interface brief

Question 29

Command to analyze EIGRP configuration

Answer 29

show running-config

Question 30

Steps to remove eigrp configuration

Answer 30

1. Enter configuration mode (conf t)
2. Remove global eigrp routing (no [ipv6] router eigrp #)
3. For IPv6, remove eigrp routing on interfaces
   a. interface ethernet0/0
   b. no ipv6 eigrp #

Question 31

Network command to enable EIGRP on all IPv4 enabled interfaces

Answer 31

network 0.0.0.0

Question 32

Command to view passive interfaces

Answer 32

show ip/ipv6 protocols