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DR (Designated Router) is for environments where many routers on the same network such as Ethernet. In the following presented network, all routers are reloaded simultaneously, and DR is selected as expected. What is the RTC status?（）
A. 2WAY/DR
B. FULL/DR
C. FULL/DROTHER
D. FULL/BDR
参考答案
更多 “ DR (Designated Router) is for environments where many routers on the same network such as Ethernet. In the following presented network, all routers are reloaded simultaneously, and DR is selected as expected. What is the RTC status?（）A. 2WAY/DRB. FULL/DRC. FULL/DROTHERD. FULL/BDR ” 相关考题
考题
阅读下面的短文，回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the routers network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the routers routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above，we can see that the router （ ） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （ ） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （ ）.A．is generating B．generate C．is generated D．generates A．forwarding table B．network interfaces C．routing policies D．destination address A．the destination address and network interfaces B．forwarding table and network interfaces C．the destination address and forward table D．routing policies and routing table
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Routers A and B are connected with a point-to-point OC-3 interface. Each router‘s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in the same area.How many IS-IS adjacencies exist between the two routers?（）A.0B.1C.2D.3
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if all OSPF routers on a broadcast network have the same OSPF priority, which parameter is used to determine the new BDR at the time of a DR failure?()
A.AB.BC.CD.D
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Given the set of routers, each with an interface on the same multi－access network:Which router can never be a designated router on that multi－access network?()
A.RouterAB.RouterBC.RouterCD.RouterD
考题
You are running OSPF between two ERX Edge Routers across an OC－12c link with HDLC encapsulation.How many designated routers are present for this link?()
A.0B.1C.2D.3
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If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?()
A. area IDB. router IDC. loopback addressD. IP address of interface on broadcast network
考题
Refer to the exhibit. Router B and router C are performing mutual redistribution between OSPF and EIGRP, and their default metrics are configured the same. Router D has equal cost paths to networks where both paths are not r eally equal cost. For example, network 172.16.54.0 shows equal cost through both router B and router C, though in reality the cost is greater using router C. Other routers, though not shown, are connected to the 172.16.54.0 and 172.16.55.0 networks, and the same issues exist to those routers and the networks connected to them. What can be done so that data will be routed along the most optimal path in the network? （）A. Redistribute connected interfaces on router B and router CB. Set the maximum nu mber of equal cost paths to1 in all routersC. When redistributing EIGRP into OSPF, set the external metric type to type E1D. Adjust the default metrics in router B and router C so that the values are different in each routerE. None of these solut ions will fix the problem. Migrate to a single dynamic routing protocol
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Refer to the exhibit. Two routers are connected by Frame Relay and are running OSPF bet ween them. Each router has been configured with the appropriate network statements under router ospf 1, but the routers are not forming an adjacency. Which of the following three commands could be configured on each router to correct this problem?（）A. RouterC(config - if)#ip ospf network broadcast RouterD(config - if)#ip ospf network broadcastB. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - pointC. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253
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.
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The Dev － 1 and Dev －3 routers are OSPF neighbors over the Ethernet 0／0 connection. Based on the show ip ospf neighbor output from the Dev － 1 and Dev － 3 routers, which statement is true?()
A. Dev - 1 is the DR because it has a lower OSPF router IDB. Dev - 3 is the DR because it has a higher OSPF router priorityC. Both Dev - 1 and Dev - 3 are using the def ault OSPF router priorityD. Dev - 3 is the DR because it has a lower OSPF router IDE. Dev - 1 is the DR because it has a higher OSPF router priority
考题
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.
考题
A network administrator is troubleshooting the OSPF configuration of routers R1 an dR2.The routers cannote stablish an adjacency relation ship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 an dR2.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.
考题
Refer to the exhibit. When running EIGRP, What is required for RouterA to exchange routing updates with RouterC?（）A、As numbers must be changed to match on all the routers.B、Loopback interface must be configured so a DR is elected.C、The no auto-summary command is needed on Router A and Router C.D、Router B needs to have two network statements, one for each connected network.
考题
Which description regarding OSPF Network LSAs is correct?（）A、They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.B、They are originat ed by Area Border Routers and are sent into a single area to advertise destinations outside that area.C、They are originated by the DR on every multi - access network. They include all attached routers including the DR itself.D、They are originated by every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.
考题
In PIM-SM operations， the first router connected to the multicast source sends the Register message towhich device？（）A、Multicast sourceB、Multicast receiverC、RPD、RP mapping agentE、Designated Router （DR）
考题
You are running OSPF between two ERX Edge Routers across an OC-12c link with HDLC encapsulation. How many designated routers are present for this link?（）A、0B、1C、2D、3
考题
If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?（）A、area IDB、router IDC、loopback addressD、IP address of interface on broadcast network
考题
Routers A and B are connected with a point-to-point OC-3 interface. Each router's OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in the same area. How many IS-IS adjacencies exist between the two routers?（）A、0B、1C、2D、3
考题
Which of the following statements describe the characteristic of link state routing protocols?（）A、The exchange of an advertisement is triggered by a change in the network.B、All routers exchange routing tables with each other in a multipoint network.C、Packets are routed based upon the shortest path to the destination.D、Paths are chosen depending on the cost efficiency factor.E、Every router in an OSPF area is capable of representing the entire network topology.F、Only the designated router in an OSPF area can represent the entire network topology.
考题
What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network？（）A、A hub router prevents routes from being advertised to the remote router.B、Only remote routers are configured as stubs.C、Stub routers are not queried for routes.D、Spoke routers connected to hub routers answer the route queries for the stub router.E、A stub router should have only EIGRP hub routers as neighbors.F、EIGRP stub routing should be used on hub routers only.
考题
There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）A、Router A remains the DIS and generates a new pseudonode LSP for that LANB、Router A remains the DIS and NO new pseudonode LSP is generated for that LANC、Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router AD、Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
考题
单选题Which description regarding OSPF Network LSAs is correct?（）A
They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.B
They are originat ed by Area Border Routers and are sent into a single area to advertise destinations outside that area.C
They are originated by the DR on every multi - access network. They include all attached routers including the DR itself.D
They are originated by every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.
考题
单选题Refer to the exhibit. When running EIGRP, What is required for RouterA to exchange routing updates with RouterC?（）A
As numbers must be changed to match on all the routers.B
Loopback interface must be configured so a DR is elected.C
The no auto-summary command is needed on Router A and Router C.D
Router B needs to have two network statements, one for each connected network.
考题
单选题If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?（）A
area IDB
router IDC
loopback addressD
IP address of interface on broadcast network
考题
单选题If all OSPF routers on a broadcast network have the same OSPF priority， what parameter is used to determine the new BDR at the time of a DR failure？（）A
area IDB
router IDC
loopback addressD
IP address of interface on broadcast network
考题
多选题What are the characteristic of link state routing protocols?（）AThe exchange of advertisement is triggered by a change in the network.BAll routers exchange routing tables with each other iIn a multipoint network.CPackets are routed based upon the shortest path to the destination.DPaths are chosen depending on the cost efficiency factor.EEvery router in an OSPF area is capable of representing the entire network topology.FOnly the designated router in an OSPF area can represent the entire network topology.
考题
单选题There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）A
No routers are adjacent with each other.B
Only Router A and Router B are adjacent at Level 1.C
Only Router A and Router B are adjacent at Level 2.D
All three routers are adjacent with each other at Level 1.
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