Last modified 12-2-10

After 11.1

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

A. HelloB. DBDC. LSRD. LSUE. LSAck

1 of 4

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

A. 5 secondsB. 10 secondsC. 15 secondsD. 30 secondsE. Something else 2 of 4

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?

A. RIPB. OSPFC. EIGRPD. More than one route will be placed into the

routing tableE. None of the above

3 of 4

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

A. NoneB. 1C. 2D. 3E. Some other

number4 of 4

Hello intervalRouter IDDead intervalHold-down intervalDR

After 11.2

Which commands correctly configure this router?

A. router ospf 1net 172.16.1.0net 10.0.0.0

B. router ospf 0net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

C. router ospf 1net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

D. router ospf 1net 172.16.1.0 0.0.0.255 area 2net 10.0.0.0 0.0.0.3 area 3

E. 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?

A. router ospf 2net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

B. router ospf 1net 172.16.1.0 0.0.0.255 area 0net 10.0.0.0 0.0.0.3 area 0

C. router ospf 1net 172.16.1.0 0.0.0.255 area 2net 10.0.0.0 0.0.0.3 area 2

D. More than one of the above

E. None of the above

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

A. 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

B. 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

C. 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

D. More than one of the above

E. None of the above

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

A. 172.16.1.1B. 10.1.1.1C. 10.3.3.1D. Something else

Interface IP-Address OK? Method Status ProtocolFastEthernet0/0 172.16.1.1 YES manual up upSerial0/0/0 10.1.1.1 YES manual down downSerial0/0/1 10.3.3.1 YES manual down down

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

A. 172.16.1.1B. 10.1.1.1C. 10.3.3.1D. Something else

Interface IP-Address OK? Method Status ProtocolFastEthernet0/0 172.16.1.1 YES manual administratively down downSerial0/0/0 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 ID?

A. 172.16.1.1B. 10.1.1.1C. 10.3.3.1D. 2.67.200.1E. Something else

Interface IP-Address OK? Method Status ProtocolFastEthernet0/0 172.16.1.1 YES manual administratively down downSerial0/0/0 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

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

A. To properly route traffic with EIGRPB. To properly route traffic with OSPFC. To properly route traffic with RIPv2D. More than one of the aboveE. None of the above

1 of 2

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

A. For serial links slower than 1.544 MbpsB. To properly route with OSPFC. To properly route with non-Cisco routersD. More than one of the aboveE. None of the above

2 of 2

After 11.4

What type of links are used in this network?A. Point-to-point B. Broadcast Multiaccess C. Nonbroadcast Multiaccess (NBMA) D. Point-to-multipoint E. Virtual links

What is the DR in this OSPF network?

A. R1 is the DRB. R2 is the DRC. R3 is the DRD. There is no DRE. The answer cannot be determined

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

A. NoneB. 1C. 2D. 3E. Some other number

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

A. 0B. 1C. 2D. 3E. Some other number

OSPF interface priority

BandwidthDelayRouter ID

This network uses OSPF. How many of these routers are DROthers?

A. NoneB. 1C. 2D. 3E. Some other number

After 11.5

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

A. 0B. 1C. 2D. 3E. 4

1 of 3

BandwidthDelayReliabilityLoad

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

A. Change reference bandwidthB. Redistribute default routeC. Modify intervalsD. Use multiple areasE. Assign costs manually

2 of 3

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

A. Change reference bandwidthB. Redistribute default routeC. Modify intervalsD. Use multiple areasE. Assign costs manually

3 of 3