单选题what is the cause of this problem?（）AThe OSPF area is not configured properly.BThe priority on R1 should be set higher.CThe cost on R1 should be set higher.DThe hello and dead timers are not configured properly.EA backup designated router needs to be added to the network.FThe OSPF process ID numbers must match.
单选题
what is the cause of this problem?（）
A
The OSPF area is not configured properly.
B
The priority on R1 should be set higher.
C
The cost on R1 should be set higher.
D
The hello and dead timers are not configured properly.
E
A backup designated router needs to be added to the network.
F
The OSPF process ID numbers must match.
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Which of the following answers can be verified as true based on the following command output from Router R1?（）R1show ip ospf virtual - linksVirtual Link OSPF_VL0 to router 4.4.4.4 is upRun as demand circuitDoNotAge LSA alloweD.Transit area 1, via interface FastEthernet0/1, Cost of using 3A. R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.B. The ping 4.4.4.4 command on R1 must currently be successful.C. R1‘s Fa0/0 OSPF cost is 3.D. 4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.
Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command.Which of the following is true about the effects of this configuration command?（）A. R1 will always create and flood a default route into the OSPF domain.B. R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1‘s IP routing table has a route to 0.0.0.0/0.C. R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.D. R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.
Your network has a mixture of Fast Ethernet and Gigabit Ethernet links. What needs t o be done to ensure optimal data routing when using OSPF?() A. Nothing. OSPF will determine the most optimal path for routing data by default.B. Adjust the hello and dead timers for more rapid detection of link failures.C. Increase the reference - bandw idth used to calculate the interface default metrics, on all routers in your network.D. Set the priority values on every broadcast interface to ensure that the designated and backup designated routers are the routers with the most processor and memory resources.
Refer to the exhibit. A company would prefer all Internet - bound OSPF routed traffic to use ISP ABC with ISP DEF as a backup. As the network consultant, what three configuration changes might you make?（）A. The default -information originate command should be configured on router B1 and B4.B. The default -information originate command should be configured on router B2 and B3.C. If the metric value for ISP ABC is set at the default, the I SP DEF metric value should be set to 1.D. If the metric value for ISP ABC is set at the default, the ISP DEF metric value should be set to 25.E. The metric type value should be set to type 1.F. The metric type value should be set to type 2.
Refer to the exhibit. You have completed an OSPF implementation, and you are verifying OSPF operation. You notice that router A and router B are stuck in the two - way state. From the show ip ospf interface command output, what is the cause of this issue?（）A. All OSPF implementations must have at le ast one interface in area 0.B. You are attempting to run in the broadcast mode over an NBMA interface.C. Both routers are configured to function as a BDR; therefore, there is no DR router.D. Someone has changed the OSPF router ID; therefore you must clear the OSPF process.E. The OSPF priority is set to 0 on both routers; therefore neither can become the DR.
You have just completed an OSPF implementation. While executing your verification plan, you determine that R1 is not able to establish full OSPF adjacency with R2. The show ip ospf neighbor comman d output on R1 shows that R2 is stuck in the INIT state. What could be the cause of this problem?（）A. DR and BDR election errors between R1 and R2.B. The R2 router has not received the OSPF hello packets from the R1 router.C. Mismatched interface ma ximum transmission unit (MTU) configuration between the R1 and R2.D. Mismatched OSPF hello interval configuration between the R1 and R2E. Corrupted LSAs exchanges between the R1 and R2.
Refer to the exhibit. Looking at the topology diagram and the partial router configurations shown, which statement is true? () A.The NProuter has two OSPF neighbors in the Full adjacency stateB.The NProuter serial0/0 interface has the OSPF dead timer set to 10 secondsC.The NProuter serial0/0 interface has been configured with an OSPF network type of pointtopointD.The 10.1.1.1 and 10.1.1.2 routers are not using the default OSPF dead and hello timers settingE.The Mismatched error is caus ed by the expiration of the OSPF timers
Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf n eighbor output, what prevents R1 from establishing a full adjacency with R2? () A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks.B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1.C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2.E. The Hello parameters on routers R1 and R2 do not m atch.
Refer to the exhibit. Routers R1 and R2 have been configured to operate with OSPF. Routers R1 and R3 have been configured to operate with RIP. After configuring the redistribution between OSPF a nd RIP on R1, no OSPF routes are distributed into RIP. What should be done to correct this problem? （）A. The redistribution command should be reentered with the match route - type parameter included.B. The redistribution command should be reentered wit h the route - map map - tag parameter included.C. The redistribution command should be reentered with the metric metric - value parameter included.D. Routes will first need to be distributed into another protocol, and then into RIP.
OSPF is configured over a Frame Relay network as shown in the exhibit. All PVCs are active.However, R1 and R3 fail to see all OSPF routes in their routing tables. The show ip ospf neighbor command executed on R2 shows the state of t he neighbors. What should be done to fix the problem? （）A. The ip ospf network broadcast command should be configured on each Frame Relay interfaceB. The ip ospf network non -broadcast command should be configured on each Frame Relay interfaceC. Th e ip ospf priority value on the spoke routers should be set to 0D. The ip ospf priority value on the hub router should be set to 0E. The neighbor command should be configured under the OSPF routing process on all routers
You try to add a new router into the established Testking OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers.The new router was configured for OSPF in the following way:Router(config) router ospf 99Router(config-if) network 10.0.0.0 255.0.0.0 area 0Based on this information, what is the most likely problem?（）A. The process id is configured improperly.B. The OSPF area is configured improperly.C. The network wildcard mask is configured improperly.D. The network number is configured improperly.E. The AS is configured improperly.F. The network subnet mask is configured improperly.G. All of the above are likely problems.
On your OSPF network, routers TK1 and TK2 belong to the same Ethernet network. However, they are unable to establish an adjacency over this link. While troubleshooting this problem, you issue the show ip ospf interface Ethernet 0command on each router. The output from these commands is displayed below:What is the underlying cause of the routers failing to become adjacent?（）A. The OSPF area is misconfigured.B. The priority on TK2 should be set lower.C. The cost on TK2 should be set lower.D. The hello and dead timers are misconfigured.E. You need to add a backup designated router to the network.F. The OSPF process ID numbers do not match.
A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?（）Router(config)router ospf 1Router(config-router)network 10.0.0.0 255.0.0.0 area 0A. The process id is configured improperlyB. The OSPF area is configured improperlyC. The network wildcard mask is configured improperlyD. The network number is configured improperlyE. The AS is configured improperlyF. The network subnet mask is configuerd improperly
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?（）A. The OSPF area is not configured properly.B. The priority on R1 should be set higher.C. The cost on R1 should be set higher.D. The hello and dead timers are not configured properly.E. A backup designated router needs to be added to the network.F. The OSPF process ID numbers must match.
An administrator types in the command router ospf 1 and receives the er ror message: "OSPF process 1 cannot start." (Output is omitted.) What should be done to correctly set up OSPF？（）A、Ensure that an interface has been configured with an IP addressB、Ensure that IP classless is enabledC、Ensure that the interfaces can ping their directly connected neighborsD、Ensure that an interface has been configured with an IP address and is up
what is the cause of this problem?（）A、The OSPF area is not configured properly.B、The priority on R1 should be set higher.C、The cost on R1 should be set higher.D、The hello and dead timers are not configured properly.E、A backup designated router needs to be added to the network.F、The OSPF process ID numbers must match.
When you enable port security on an interface that is also configured with a voice VLAN， what is the maximum number of secure MAC addresses that should be set on the port？（）A、No more than one secure MAC address should be set.B、The default will be set.C、The IP phone should use a dedicated port， therefore only one MAC address is needed per port.D、No value is needed if the switchport priority extend command is configured. E、No more than two secure MAC addresses should be set.
A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem? （）Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0A、The process id is configured improperlyB、The OSPF area is configured improperlyC、The network wildcard mask is configured improperlyD、The network number is configured improperlyE、The AS is configured improperlyF、The network subnet mask is configuerd improperly
多选题Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem?（）AAll of the routers need to be configured for backbone Area 1.BR1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.CA static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.DThe hello and dead interval timers are not set to the same values on R1 and R3.EEIGRP is also configured on these routers with a lower administrative distance.FR1 and R3 are configured in different areas.
单选题Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 R2 with HSRP. While debugging router R2 you notice very frequent HSRP group state transitions. What is the most likely cause of this？ （）A physical layer issuesB no spanning tree loopsC use of non-default HSRP timersD failure to set the command standby 35 preempt
单选题Your network has a mixture of Fast Ethernet and Gigabit Ethernet links. What needs t o be done to ensure optimal data routing when using OSPF?（）ANothing. OSPF will determine the most optimal path for routing data by default.BAdjust the hello and dead timers for more rapid detection of link failures.CIncrease the reference - bandw idth used to calculate the interface default metrics, on all routers in your network.DSet the priority values on every broadcast interface to ensure that the designated and backup designated routers are the routers with the most processor and memory resources.
单选题Which of the following answers can be verified as true based on the following command output from Router R1?（） R1#show ip ospf virtual - links Virtual Link OSPF_VL0 to router 4.4.4.4 is up Run as demand circuit DoNotAge LSA alloweD. Transit area 1, via interface FastEthernet0/1, Cost of using 3AR1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.BThe ping 4.4.4.4 command on R1 must currently be successful.CR1's Fa0/0 OSPF cost is 3.D4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.
单选题A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem? （）Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0AThe process id is configured improperlyBThe OSPF area is configured improperlyCThe network wildcard mask is configured improperlyDThe network number is configured improperlyEThe AS is configured improperlyFThe network subnet mask is configuerd improperly
单选题what is the cause of this problem?（）AThe OSPF area is not configured properly.BThe priority on R1 should be set higher.CThe cost on R1 should be set higher.DThe hello and dead timers are not configured properly.EA backup designated router needs to be added to the network.FThe OSPF process ID numbers must match.
单选题You try to add a new router into the established Testking OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers.The new router was configured for OSPF in the following way: Router(config)# router ospf 99 Router(config-if)# network 10.0.0.0 255.0.0.0 area 0 Based on this information, what is the most likely problem?（）AThe process id is configured improperly.BThe OSPF area is configured improperly.CThe network wildcard mask is configured improperly.DThe network number is configured improperly.EThe AS is configured improperly.FThe network subnet mask is configured improperly.GAll of the above are likely problems.
单选题When you enable port security on an interface that is also configured with a voice VLAN， what is the maximum number of secure MAC addresses that should be set on the port？（）ANo more than one secure MAC address should be set.BThe default will be set.CThe IP phone should use a dedicated port， therefore only one MAC address is needed per port.DNo value is needed if the switchport priority extend command is configured. ENo more than two secure MAC addresses should be set.
单选题You have just completed an OSPF implementation. While executing your verification plan, you determine that R1 is not able to establish full OSPF adjacency with R2. The show ip ospf neighbor comman d output on R1 shows that R2 is stuck in the INIT state. What could be the cause of this problem?（）ADR and BDR election errors between R1 and R2.BThe R2 router has not received the OSPF hello packets from the R1 router.CMismatched interface ma ximum transmission unit (MTU) configuration between the R1 and R2.DMismatched OSPF hello interval configuration between the R1 and R2ECorrupted LSAs exchanges between the R1 and R2.
单选题An administrator types in the command router ospf 1 and receives the er ror message: "OSPF process 1 cannot start." (Output is omitted.) What should be done to correctly set up OSPF？（）AEnsure that an interface has been configured with an IP addressBEnsure that IP classless is enabledCEnsure that the interfaces can ping their directly connected neighborsDEnsure that an interface has been configured with an IP address and is up