Last modified 12-2-10 After 11.1. What type of OSPF packets are used to establish neighbor...
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Transcript of Last modified 12-2-10 After 11.1. What type of OSPF packets are used to establish neighbor...
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
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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
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
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
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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
How many of these values are used to calculate the OSPF metric?
A. 0B. 1C. 2D. 3E. 4
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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
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