By default, what is the ospf cost for any link with a bandwidth of 100 mb/s or greater?

1. By default, what is the OSPF cost for any link with a bandwidth of 100 Mb/s or

greater?

100

100000000

1*

10000

OSPF uses the formula: Cost = 100,000,000 / bandwidth. Because OSPF will only use integers as cost,

any bandwidth of 100 Mb/s or greater will all equal a cost of 1.

2. Which command will verify that a router that is running OSPFv3 has formed an

adjacency with other routers in its OSPF area?

show ipv6 interface brief

show ipv6 ospf neighbor*

show ipv6 route ospf

show running-configuration

The show ipv6 ospf neighbor command will verify neighbor adjacencies for OSPFv3 routers. The other

options do not provide neighbor information.

3. Which OSPF component is identical in all routers in an OSPF area after

convergence?

adjacency database

link-state database*

SPF tree

routing table

Each OSPF router views the network differently as the root of a unique SPF tree. Each router builds

adjacencies based on its own position in the topology. Each routing table in the area is developed

individually through the application of the SPF algorithm. The link-state database for an area, however,

must reflect the same information for all routers.

4. Which OPSF packet contains the different types of link-state advertisements?

DBD

LSR

hello

LSAck

LSU*

Link-state update (LSU) packets contain different types of link-state advertisements (LSAs). The LSUs are

used to reply to link-state requests (LSRs) and to announce new information.

5. Which three addresses could be used as the destination address for OSPFv3

messages? (Choose three.)

FF02::AFF02::1:2

2001:db8:cafe::1

FE80::1*

FF02::6*

FF02::5*

OSPFv6 messages can be sent to either the OSPF router multicast FF02::5, the OSPF DR/BDR multicast

FF02::6, or the link-local address.

6. Fill in the blank.

OSPF uses _______ as a metric.Correct Answer: cost*

The OSPF metric is cost. The lowest cost path to a remote destination is the preferred path and is

installed in the routing table.

7. What are the two purposes of an OSPF router ID? (Choose two.)

to enable the SPF algorithm to determine the lowest cost path to remote networks

to facilitate the establishment of network convergence

What is the OSPF cost for any link with a bandwidth of 100 MB's or greater?

What is the OSPF cost for any link with a bandwidth?

What is the OSPF cost?

Does OSPF prefer higher cost?