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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.
参考答案
更多 “ 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. ” 相关考题
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Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP.Which one of the following is true?（）A. R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.B. For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.C. For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.D. No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
考题
ABR R1 has been configured with an area 1 stub no － summary command. Which stubby area type is area 1?()
A. StubB. Totally stubbyC. NSSAD. Totally NSSA
考题
Refer to the exhibit. Router C was configured so that it could form an adja cency with three OSPF neighbors, one connected to each of its three physical interfaces. Which statement is correct about router C?（）A. It is configured and functioning correctly as an OSPF internal router.B. It is configured and functioning correc tly as an ABR attached to stub area 4.C. It is configured and functioning correctly as an ASBR attached to external area 4.D. It is configured and functioning correctly as an ABR attached to totally stubby area 4.E. It is not configured correctly to function as specified.
考题
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.
考题
A new network has been configured using OSPF as the routing protocol. With which network type will OSPF establish router adjacencies but not perform the DR／BDR election process?()
A. point-to-pointB. Backbone area 0C. Broadcast multicastD. Non-broadcast multi-accessE. The DR/BDR process is done for all interface types
考题
Refer to the exhibit. What two statements are true?()
A. This is the designated router (DR) on the FastEthernet 0/0 link.B. The output was generated by the show ip interface c ommand.C. The router was configured with the commands:r outer ospf 1 network 172.16.6.0 0.0.0.255 area 1D. The IP address of the backup designated router (BDR) is FE80::205:5FFF:FED3:5808.E. Interface FastEthernet 0/0 was configured with the ipv6 o spf 1 area 1 command.F. OSPF version 2 has been enabled to support IPv6.
考题
Based on the exhibited output, which three statements are true?()
A. The route to 10.2.0.0/16 was redistributed into EIGRP.B. A default route has been redistributed into the EIGRP autonomous system.C. R1 is configured with the ip summary - address command.D. R1 is sourcing a n external EIGRP route from Null0.E. The router at 10.1.1.2 is configured with the ip default - network 0.0.0.0 command.F. R1 is configured with the variance command.
考题
Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?()
A. The no auto - summary command has not been issued under the EIGRP process on both routers.B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.
考题
Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）A、R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.B、For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.C、For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.D、No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
考题
A router has been configured with the commands router os pf 9, network 172.16.1.0 0.0.0.255 area 8, and network 172.16.0.0 0.0.255.255 area 9, in that order. No other OSPF -related commands have been configured. The answers list the IP addresses that could be assigned to this router's Fa0/0 interface. Which an swers list an IP address/prefix length that would cause the router to put Fa0/0 into area 9?（）A、172.16.0.1/23B、172.16.1.1/26C、172.16.1.1/24D、172.16.0.255/23E、None of the other answers is correct.
考题
You administer a network that uses two routers， R1 and R2， configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows： R1#configure terminal R1（config）#interface fa0/0 R1（config-if）#ip address 10.10.0.5 255.255.255.0 R1（config-if）#standby 1 priority 150 R1（config-if）#standby preempt delay minimum 50 R1（config-if）#standby 1 track interface fa0/2 15 R1（config-if）#standby 1 ip 10.10.0.20 Which of the following describes the effect the standby preempt delay minimum 50 command will have on router R1？（）A、 The HSRP priority for router R1 will increase to 200.B、 Router R1 will become the standby router if the priority drops below 50.C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down. D、 Router R1 will wait 50 seconds before attempting to preempt the active router.
考题
A new network has been configured using OSPF as the routing protocol. With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?（）A、point-to-pointB、Backbone area 0C、Broadcast multicastD、Non-broadcast multi-accessE、The DR/BDR process is done for all interface types
考题
R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1. Which of the following is true?（）A、R1 loses and then re - establishes neighborships with all neighbors.B、R1 no longer advertises 10.1.1.0/24 to neighbors into area 1.C、R1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).D、R1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
考题
A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the OSPF configuration.B、For the two vlans to communicate， a network statement for each subinterface needs to be added to the OSPF configuration.C、Direct inter-vlan communication does not require OSPFD、OSPF cannot be used if router-on-a-stick is configured on the router
考题
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.
考题
Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1's (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode. Which of the following occurs？（）A、Fa0/0 failsB、The command is rejecteDC、The existing three neighbors failD、The neighborship with 172.16.2.20 fails and then reestablishesE、None of the other answers is correct
考题
The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A、R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1B、R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1C、R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED、R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
考题
Which of the following is true about an OSPF area border router (ABR)?（）A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
考题
Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0". Whic h of the following is most likely to have caused this output to occur on R1?（）A、R1 has been configured with an ip default- network 2.0.0.0 command.B、R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.C、R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.D、Another router has been configured with an ip default - network 2.0.0.0 command.E、Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.
考题
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.
考题
单选题ABR R1 has been configured with an area 1 stub no - summary command. Which stubby area type is area 1?（）A
StubB
Totally stubbyC
NSSAD
Totally NSSA
考题
单选题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.
考题
单选题Which of the following is true about an OSPF area border router (ABR)?（）A
The ABR must have multiple interfaces connected to the backbone areAB
An ABR is a router with two interfaces, each connected to a different nonbackbone areAC
The only requirement to be considered an ABR is at least one interface connected to the backbone areAD
An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
考题
单选题The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A
R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1B
R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1C
R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED
R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
考题
多选题A router has been configured with the commands router os pf 9, network 172.16.1.0 0.0.0.255 area 8, and network 172.16.0.0 0.0.255.255 area 9, in that order. No other OSPF -related commands have been configured. The answers list the IP addresses that could be assigned to this router's Fa0/0 interface. Which an swers list an IP address/prefix length that would cause the router to put Fa0/0 into area 9?（）A172.16.0.1/23B172.16.1.1/26C172.16.1.1/24D172.16.0.255/23ENone of the other answers is correct.
考题
单选题A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）A
For the two vlans to communicate，a network statement for the trunk interface needs to be added to the OSPF configuration.B
For the two vlans to communicate， a network statement for each subinterface needs to be added to the OSPF configuration.C
Direct inter-vlan communication does not require OSPFD
OSPF cannot be used if router-on-a-stick is configured on the router
考题
单选题Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0". Whic h of the following is most likely to have caused this output to occur on R1?（）A
R1 has been configured with an ip default- network 2.0.0.0 command.B
R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.C
R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.D
Another router has been configured with an ip default - network 2.0.0.0 command.E
Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.
考题
单选题Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）A
R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.B
For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.C
For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.D
No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
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