EIGRP

Question 1

What type of routing protocol is EIGRP

Answer 1

Distance Vector

Question 2

EIGRP algorithm

Answer 2

DUAL

Question 3

What does DUAL mean

Answer 3

Diffusing Update Algorithm

Question 4

EIGRP internal AD

Answer 4

90

Question 5

EIGRP external AD

Answer 5

170

Question 6

EIGRP summary AD

Answer 6

5

Question 7

EIGRP Standard

Answer 7

Cisco proprietary

Question 8

EIGRP Protocols supported

Answer 8

IP, IPX, Appletalk

Question 9

EIGRP Transport

Answer 9

IP on port 88

Question 10

EIGRP authentication type

Answer 10

MD5

Question 11

EIGRP multicast IP

Answer 11

224.0.0.10

Question 12

EIGRP hello timers

Answer 12

5/60

Question 13

EIGRP hold timers

Answer 13

15/180

Question 14

EIGRP packet types (u,q,r,h,a)

Answer 14

update, query, reply, hello, acknowledge

Question 15

EIGRP reported (advertised) distance

Answer 15

the metric advertised by the neighboring router for a specific route. This is the metric of the route used by the neighboring router to reach that specific destionation network.

Question 16

EIGRP feasible distance

Answer 16

the local router’s metric of the best route to reach a specific network. The metric is calculated using the metric reported by the neighbor (the advertised distance) plus the metric to the neighbor reporting the route. The route with the lowest FD will be placed in the routing table

Question 17

EIGRP Stuck in Active (SIA)

Answer 17

The SIA state means that an EIGRP router has not received a reply to a query from one or more neighbors within the time allotted (approximately 3 minutes). When this happens, EIGRP clears the neighbors that did not send a reply and logs a DUAL-3-SIA error message for the route that went active.

Question 18

EIGRP passive interface

Answer 18

an interface which does not participate in EIGRP but whose network is advertised

Question 19

EIGRP stub router

Answer 19

a router that advertises but is omitted from route query process

Question 20

What are the tree tables EIGRP uses

Answer 20

Neighbor, Topology, Routing

Question 21

What has to happen for a route to be considered as a feasible successor in EIGRP

Answer 21

Advertised route must be less than the feasible distance of the successor

Question 22

What is a successor?

Answer 22

Primary route stored in routing table

Question 23

What is feasible successor

Answer 23

Back-up route stored in topology table

Question 24

What is Feasible distance

Answer 24

How far a network is from YOU

Question 25

What is Advertised distance

Answer 25

How far a network is from your NEIGHBOR

Question 26

EIGRP multicast address

Answer 26

224.0.0.10

Question 27

What protocol does EIGRP use

Answer 27

RTP, reliable transport protocol