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After 11.1. Last modified 12-2-10. What type of OSPF packets are used to establish neighbor adjacencies?. Hello DBD LSR LSU LSAck. 1 of 4. How often are OSPF hello packets sent on point-to-point serial links by default?. 5 seconds 10 seconds 15 seconds 30 seconds Something else.

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After 11 1

After 11.1

Last modified 12-2-10


What type of ospf packets are used to establish neighbor adjacencies
What type of OSPF packets are used to establish neighbor adjacencies?

  • Hello

  • DBD

  • LSR

  • LSU

  • LSAck

1 of 4


How often are ospf hello packets sent on point to point serial links by default
How often are OSPF hello packets sent on point-to-point serial links by default?

  • 5 seconds

  • 10 seconds

  • 15 seconds

  • 30 seconds

  • Something else

2 of 4


After 11 1

A router has three possible routes to the same internal network: one from RIP, one from OSPF, and one from EIGRP. All ADs are at default values. Which one will be placed into the routing table?

  • RIP

  • OSPF

  • EIGRP

  • More than one route will be placed into the routing table

  • None of the above

3 of 4


How many of these values must match for routers to form an ospf adjacency
How many of these values must match for routers to form an OSPF adjacency?

  • Hello interval

  • Router ID

  • Dead interval

  • Hold-down interval

  • DR

  • None

  • 1

  • 2

  • 3

  • Some other number

4 of 4


After 11 2

After 11.2 OSPF adjacency?


Which commands correctly configure this router
Which commands correctly configure this router? OSPF adjacency?

  • router ospf 1net 172.16.1.0net 10.0.0.0

  • router ospf 0net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 2net 10.0.0.0 0.0.0.3 area 3

  • More than one of the above


Which commands correctly configure r1 if r2 and r3 are configured to use ospf process id 2 area 0
Which commands correctly configure R1, if R2 and R3 are configured to use OSPF process-id 2, area 0?

  • router ospf 2net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 2net 10.0.0.0 0.0.0.3 area 2

  • More than one of the above

  • None of the above


Which commands correctly configure r1 if r2 and r3 are configured to use ospf process id 2 area 01
Which commands correctly configure R1, if R2 and R3 are configured to use OSPF process-id 2, area 0?

  • router ospf 2net 172.16.1.0 0.0.0.255 area 0net 10.1.1.0 0.0.0.3 area 0net 10.2.2.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 0net 10.1.1.0 0.0.0.3 area 0net 10.3.3.0 0.0.0.3 area 0

  • router ospf 1net 172.16.1.0 0.0.0.255 area 2net 10.1.1.0 0.0.0.3 area 2net 10.3.3.0 0.0.0.3 area 2

  • More than one of the above

  • None of the above


No router id command has been used what is this router s ospf router id
No router-id command has been used. What is this router's OSPF Router ID?

  • 172.16.1.1

  • 10.1.1.1

  • 10.3.3.1

  • Something else

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 172.16.1.1 YES manual up up

Serial0/0/0 10.1.1.1 YES manual down down

Serial0/0/1 10.3.3.1 YES manual down down


No router id command has been used what is this router s ospf router id1
No router-id command has been used. What is this router's OSPF Router ID?

  • 172.16.1.1

  • 10.1.1.1

  • 10.3.3.1

  • Something else

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 172.16.1.1 YES manual administratively down down

Serial0/0/0 10.1.1.1 YES manual up up

Serial0/0/1 10.3.3.1 YES manual up up


No router id command has been used what is this router s ospf router id2
No router-id command has been used. What is this router's OSPF Router ID?

  • 172.16.1.1

  • 10.1.1.1

  • 10.3.3.1

  • 2.67.200.1

  • Something else

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 172.16.1.1 YES manual administratively down down

Serial0/0/0 10.1.1.1 YES manual up up

Serial0/0/1 10.3.3.1 YES manual up up

Loopback1 2.67.200.1 YES manual up up


After 11 3

After 11.3 OSPF Router ID?


You have serial links of varying speeds when should you use the bandwidth command
You have serial links of varying speeds. When should you use the bandwidth command?

  • To properly route traffic with EIGRP

  • To properly route traffic with OSPF

  • To properly route traffic with RIPv2

  • More than one of the above

  • None of the above

1 of 2


When should you use the ip ospf cost command instead of the bandwidth command
When should you use the use the ipospf cost command instead of the bandwidth command?

  • For serial links slower than 1.544 Mbps

  • To properly route with OSPF

  • To properly route with non-Cisco routers

  • More than one of the above

  • None of the above

2 of 2


After 11 4

After 11.4 use the


What type of links are used in this network
What type of links are used in this network? use the

  • Point-to-point

  • Broadcast Multiaccess

  • NonbroadcastMultiaccess (NBMA)

  • Point-to-multipoint

  • Virtual links


What is the dr in this ospf network
What is the DR in this OSPF network? use the

  • R1 is the DR

  • R2 is the DR

  • R3 is the DR

  • There is no DR

  • The answer cannot be determined


After 11 1
A link on R1 changes state on this OSPF network, and sends out an LSU. How many copies of that LSU does R4 receive?

  • None

  • 1

  • 2

  • 3

  • Some other number


How many of these values affect dr choice in an ospf election
How many of these values affect DR choice in an OSPF election?

  • OSPF interface priority

  • Bandwidth

  • Delay

  • Router ID

  • 0

  • 1

  • 2

  • 3

  • Some other number


This network uses ospf how many of these routers are drothers
This network uses OSPF. How many of these routers are election?DROthers?

  • None

  • 1

  • 2

  • 3

  • Some other number


After 11 5

After 11.5 election?


How many of these values are used to calculate the ospf metric
How many of these values are used to calculate the OSPF metric?

  • Bandwidth

  • Delay

  • Reliability

  • Load

  • 0

  • 1

  • 2

  • 3

  • 4

1 of 3


Which adjustment can make ospf converge faster but will create more network traffic
Which adjustment can make OSPF converge faster, but will create more network traffic?

  • Change reference bandwidth

  • Redistribute default route

  • Modify intervals

  • Use multiple areas

  • Assign costs manually

2 of 3


Which adjustment is needed to properly route networks with gigabit links
Which adjustment is needed to properly route networks with gigabit links?

  • Change reference bandwidth

  • Redistribute default route

  • Modify intervals

  • Use multiple areas

  • Assign costs manually

3 of 3


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