OSPF

Question 1

Manually configure the OSPF router ID:
R1(config-router)# […]

Answer 1

router-id a.b.c.d

Question 2

Does the OSPF process ID have to match for two routers to become OSPF neighbors?

Answer 2

No

Question 3

Does single-area OSPF have to use area 0?

Answer 3

No

Question 4

An […] is an OSPF router that connects the OSPF network to an external network.

Answer 4

autonomous system boundary router (ASBR)

Question 5

OSPF: What does ASBR stand for?

Answer 5

Autonomous System Boundary Router

Question 6

Reset the OSPF process on the local router:
R1# […]

Answer 6

clear ip ospf process

Question 7

OSPF Router ID selection priority:
1. Manual configuration
2. Highest IP address on a loopback interface
3. […]

Answer 7

Highest IP address on a physical interface

Question 8

OSPF Router ID selection priority:
1. Manual configuration
2. […]
3. Highest IP address on a physical interface

Answer 8

Highest IP address on a loopback interface

Question 9

OSPF Router ID selection priority:
1. […]
2. Highest IP address on a loopback interface
3. Highest IP address on a physical interface

Answer 9

Manual configuration

Question 10

Configure the maximum number of paths an OSPF router will use to perform ECMP load-balancing:
R1(config-router)# […]

Answer 10

maximum-paths number

Question 11

Modify the OSPF AD on the local router:
R1(config-router)# […]

Answer 11

distance value

Question 12

Configure an OSPF router to advertise its default route into the OSPF domain:
R1(config-router)# […]

Answer 12

default-information originate

Question 13

Prevent an OSPF router from sending OSPF messages out of an OSPF-enabled interface:
R1(config-router)# […]

Answer 13

passive-interface interface-id

Question 14

Enable OSPF on interfaces in the specified range:
R1(config-router)# […]

Answer 14

network ip-address wildcard-mask area area

Question 15

Enter OSPF configuration mode:
R1(config)# […]

Answer 15

router ospf process-id

Question 16

OSPF: An […] route is a route to a destination in a different OSPF area.

Answer 16

interarea

Question 17

OSPF: An […] route is a route to a destination inside the same OSPF area.

Answer 17

intra-area

Question 18

OSPF: Routers connected to the backbone area (area 0) are called […] routers.

Answer 18

backbone

Question 19

OSPF: It is recommend that you connect an ABR to a maximum of […] areas.

Answer 19

2

Question 20

OSPF: What does ABR stand for?

Answer 20

Area Border Router

Question 21

OSPF: Routers with interfaces in multiple areas are called […].

Answer 21

area border routers (ABRs)

Question 22

OSPF: Routers with all interfaces in the same area are called […] routers.

Answer 22

internal

Question 23

OSPF: The backbone area (area […]) is an area that all other areas must connect to.

Answer 23

0

Question 24

OSPF: The […] area (area 0) is an area that all other areas must connect to.

Answer 24

backbone

Question 25

OSPF: An […] is a set of routers and links that share the same LSDB.

Answer 25

area

Question 26

OSPF can divide networks into separate […]

Answer 26

areas

Question 27

OSPF LSAs have a default aging timer of [time]

Answer 27

30 minutes

Question 28

OSPF LSAs are organized in a structure called the […].

Answer 28

LSDB

Question 29

OSPF […] are organized in a structure called the LSDB.

Answer 29

LSAs

Question 30

OSPF: What does LSDB stand for?

Answer 30

Link State Database

Question 31

OSPF: What does LSA stand for?

Answer 31

Link State Advertisement

Question 32

Which version of OSPF is used for IPv6?

Answer 32

OSPFv3

Question 33

Which version of OSPF is usually used for IPv4?

Answer 33

OSPFv2

Question 34

The Shortest Path First algorithm is also known as […]’s algorithm.

Answer 34

Dijkstra