Open Shortest Path First (OSPF)

Question 1

In what state is the network considered converged

Answer 1

Full

Question 2

In what state is OSPF just starting

Answer 2

Down

Question 3

In what state is OSPF considered enabled

Answer 3

Initial

Question 4

In what state are Hello messages being sent

Answer 4

Initial

Question 5

In what state do routers see each other’s Router-ID (RIDs)

Answer 5

2-Way

Question 6

Through what are Router-IDs (RIDs) exchanged

Answer 6

Hello Message

Question 7

In what state do Drothers remain in

Answer 7

2-Way

Question 8

In what state do routers identify a master

Answer 8

Exstart

Question 9

In what state do routers exchange descriptions of theis local link state databases

Answer 9

Exchange

Question 10

In what state do routers exchange LSA messages

Answer 10

Loading

Question 11

When does SPF run

Answer 11

After Convergence

Question 12

On Multi-access networks, at what state are the Designated and backup Designated routers elected

Answer 12

2-Way

Question 13

Why are Designated Routers elected

Answer 13

to prevent LSA floods

Question 14

What IPv4 address is used to send LSAs to the Designated Router/BDR

Answer 14

224.0.0.6

Question 15

What IPv4 address does the DR use to send out hellos and updates

Answer 15

224.0.0.5

Question 16

On a multi-access network, DR election is based on what 2 factors

Answer 16

Interface Priority (highest)
RID (highest)

Question 17

When is OSPFv3 used rather than OSPF

Answer 17

IPv6

Question 18

What IPv6 address is used to send LSAs to the Designated Router/BDR

Answer 18

FF02::6

Question 19

What IPv6 address does the DR use to send out hellos and updates

Answer 19

FF02::5

Question 20

EIGRP uses what IPv4 and IPv6 addresses to send Hellos and updates

Answer 20

224.0.0.10

FF02::A

Question 21

What is OSPFs metric called

Answer 21

Cost