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).
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).
相关考题：
路由器R1的拓扑连接和地址分配如下图所示，如果在R1上安装OSPF协议，运行命令：router ospf 200，则配置E0和E1端口的命令分别是______。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0．255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
路由器R1的拓扑连接和地址分配如图1-9所示，如果在R1上安装OSPF协议，运行下列命令：router ospf 200，则配置E0和E1端口的命令分别是(40)。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
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
Refer to the exhibit. Will redistribute d RIP routes from OSPF Area 2 be allowed in Area 1? () A. RIP routes will be allowed in Area 1 only if they are first redistributed into EIGRP.B. Because NSSA will discard type 7 LSAs, redistributed RIP routes will not be allowed in Area 1.C. Redistrib uted RIP routes will be allowed in Area 1 because they will be changed into type 5 LSAs in Area 0 and passed on into Area 1.D. Redistributed RIP routes will be allowed in Area 1 because they will be changed into type 7 LSAs in Area 0 and passed on into Area 1.E. Because Area 1 is an NSSA, redistributed RIP routes will not be allowed.
Refer to the exhibit. What is the effect of the OSPF configuration on router B?() A. All interfaces will be in area 0B. The router will be an ABR with s1/0 in area 0 and f0/0 and 0/1 in area 1C. The route r will be an ABR with s1/0 in area 0 and f0/0 and 0/1 in area 2D. The router will be an ABR with s1/0 in area 0, f0/0 in area 1, and f0/1 in area 2
When an OSPF design is planned, which implementation can help a router not have memory resource issues?() A. Have a backbone area (area 0) with 40 routers and use default routes to reach external destinationsB. Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPFC. Have less OSPF areas to reduce the need for interarea route summarizationsD. Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2
Which of the following are characteristics of OSPF areas?() A. Hierarchical OSPF networks need to be in one areaB. Multiple OSPF areas must connect to area 0C. Single area OSPF networks must be configured in area 1D. Areas can be assigned any number from 0 to 63535E. Area 0 is called the backbone areaF. Each OSPF area need to be configured with a loopback interface
Refer to the exhibit. During the process of configuring a virtual link to connect area 2 with the backbone area, the network administrator received this console message on R3:*Mar 1 00:2 5:01.084: %OSPF -4- ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual link but not found from 20.20.20.1, Serial 0 .How should the virtual link be configured on the OSPF routers to establish full connectivity between the areas?（）A.R1(config - router)# area 0 virtual - link 1.1.1.1R3(config - router)# area 2 virtual - link 3.3.3.3B.R1(config - router)# area 1 virtual - link 2.2.2.2 R3(config - router)# area 1 virtual - link 2.2.2.2C.R1(config - router)# area 1 virtual - link 20.20 .20.2 R3(config - router)# area 1 virtual - link 30.30.30.2D.R1(config - router)# area 1 virtual - link 30.30.30.3 R3(config - router)# area 1 virtual - link 20.20.20.1E.R1(config - router)# area 1 virtual - link 3.3.3.3 R3(config - router)# area 1 virtual - link 1.1 .1.1
路由器R1的拓扑连接和地址分配如图5-3所示，如果在R1上安装OSPF协议，运行命令router ospf 200，则配置E0和E1端口的命令分别是(26)。A．network 10.1.1.0255.255.255.0 area0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
When an OSPF design is planned, which implementation can help a router not have memory resource issues?（）A、Have a backbone area (area 0) with 40 routers and use default routes to reach external destinationsB、Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPFC、Have less OSPF areas to reduce the need for interarea route summarizationsD、Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2
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).
OSPF routing uses the concept of areas. What are the characteristics of OSPF areas?（）A、Each OSPF area requires a loopback interface to be configured.B、Areas may be assigned any number from 0 to 65535.C、Area 0 is called the backbone area.D、Hierarchical OSPF networks do not require multiple areas.E、Multiple OSPF areas must connect to area 0.F、Single area OSPF networks must be configured in area 1.
R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1's best route for 10.1.1.0/24?（）A、R2's Type 1 LSAB、Subnet 10.1.1.0/24's Type 2 LSAC、ABR1's Type 1 LSA in area 0D、Subnet 10.1.1.0/24's Type 3 LSA in Area 0E、 Subnet 10.1.1.0/24's Type 3 LSA in Area 1
Why would you make a non-backbone area a stub or not-so-stubby area？（）A、 to aggregate routes learned from the ABRB、 to lower the cost of routes advertised by the ABRC、 to connect a non-contiguous area to the backboneD、 to decrease the size of the link-state database in that area
Which of the following are characteristics of OSPF areas?（）A、Hierarchical OSPF networks need to be in one areaB、Multiple OSPF areas must connect to area 0C、Single area OSPF networks must be configured in area 1D、Areas can be assigned any number from 0 to 63535E、Area 0 is called the backbone areaF、Each OSPF area need to be configured with a loopback interface
Area Border Router （ABR） is a router located on the border of one or more OSPF areas that connect those areas to the backbone network. An ABR will inject a default route into which two types of areas？（）A、Area 0B、NSSAC、Totally stubbyD、Stub
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
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
An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）A、stub areaB、transit areaC、border areaD、not-so-stubby area
单选题An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）Astub areaBtransit areaCborder areaDnot-so-stubby area
单选题ABR R1 has been configured with an area 1 stub no - summary command. Which stubby area type is area 1?（）AStubBTotally stubbyCNSSADTotally NSSA
多选题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?（）AR1 loses and then re - establishes neighborships with all neighbors.BR1 no longer advertises 10.1.1.0/24 to neighbors into area 1.CR1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).DR1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
单选题An OSPF non-backbone area allows external routes to be flooded within the area. These external routes are propagated into other areas. However， external routes from other areas are not allowed to enter this area. Which type of SPF area does this describe？（）Astub areaBtransit areaCborder areaDnot-so-stubby area
单选题R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2 c onnects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1's best route for 10.1.1.0/24?（）AR2's Type 1 LSABSubnet 10.1.1.0/24's Type 2 LSACABR1's Type 1 LSA in area 0DSubnet 10.1.1.0/24's Type 3 LSA in Area 0E Subnet 10.1.1.0/24's Type 3 LSA in Area 1
单选题Which of the following is true about an OSPF area border router (ABR)?（）AThe ABR must have multiple interfaces connected to the backbone areABAn ABR is a router with two interfaces, each connected to a different nonbackbone areACThe only requirement to be considered an ABR is at least one interface connected to the backbone areADAn ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
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 32AR1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1BR1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1CR1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablEDR1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE