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多选题
Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0/24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - worker's implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）
A
frame - relay map commands on R3 - R10 referencing the other routers in this group
B
Nine OSPF neighbor commands on each router
C
Nine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10
D
R1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDR
E
R3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR
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更多 “多选题Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0/24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - worker's implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）Aframe - relay map commands on R3 - R10 referencing the other routers in this groupBNine OSPF neighbor commands on each routerCNine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10DR1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDRER3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR” 相关考题
考题
Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up(71)at the customer premise over slow(72)ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet(73)technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the Lost computers at the customer premise connect to the(74)or cable "modem" over a much faster medium such as Ethernet. It also means that multiple(75)can connect to the Internet through the same connection.A．bufferB．modemC．computerD．server
考题
● Traditional Internet access methods like dial-up were so slow that host computers wereconnected to the dial-up （71） at the customer premise over slow （72） ports. PPP wasdesigned to run directly over these serial links. But with the advent of broadband Internet （73）technologies such as ADSL and cable modems there has been a considerable increase in thebandwidth delivered to the end users. This means that the host computers at the customerpremise connect to the （74） or cable "modem" over a much faster medium such as Ethernet.It also means that multiple （75） can connect to the Internet through the same connection.
考题
● Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up （71） at the customer premise over slow （72） ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet （73） technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the （74） or cable "modem" over a much faster medium such as Ethernet. It also means that multiple （75） can connect to the Internet through the same connection.
考题
Which of the following is a hybrid network topology used for fault tolerance, in which all computersMUST connect to each other?()
A.StarB.RingC.BusD.Mesh
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
Refer to the e xhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover?（）A. Configure BGP n eighbor relationships between all interfaces on R1 and R4.B. Install a direct connection between R1 and R4.C. Configure loopback interfaces on R1 and R4 to provide the update source address for BGP packets.D. Configure only one neighbor relationship between R1‘s 192.168.1.2 interface and R4‘s 172.16.10.2 interface.
考题
Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the func tion of rendezvous point (RP) for the multicast network? （）A. both routers R1 and R2B. router R1C. router R2D. none of the routers since they are not configured with static RP
考题
Which design topology incurs a performance penalty since there are two encryption－decryption cycles between any two remote sites?()
A. peer-to-peerB. partial meshC. hub and spokeD. full mesh
考题
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.
考题
If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider
考题
A company has a Frame Relay WAN with one central - site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of t he 100 branch routers. All routers use point - to - point subinterfaces and one subnet per PVC. Which of the following is true about OSPF in this design?（）A、The central site router has 100 fully adjacent neighborships with the 100 branchesB、The central site router has neighborships with all branch routers, but fully adjacent neighbors with only two branchesC、The central site router has a neighborship with the Frame Relay switcHD、None of the other answers is correct
考题
Which design topology incurs a performance penalty since there are two encryption-decryption cycles between any two remote sites?（）A、peer-to-peerB、partial meshC、hub and spokeD、full mesh
考题
Which of the following is a hybrid network topology used for fault tolerance, in which all computersMUST connect to each other?（）A、StarB、RingC、BusD、Mesh
考题
Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0/24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - worker's implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）A、frame - relay map commands on R3 - R10 referencing the other routers in this groupB、Nine OSPF neighbor commands on each routerC、Nine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10D、R1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDRE、R3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR
考题
Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN- based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet. Which of the following are true about the OSPF database exchange process over this subnet at this point?（）A、R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all - DR - routers multicast address.B、R5 will send its DD, LSR, and LSU pack ets to the 224.0.0.6 all - DR - routers multicast address.C、The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all- SPF - routers multicast address.D、The DR will inform R5 about LSAs by sending its DD, LSR, and LSU pa ckets to the 224.0.0.5 all- SPF - routers multicast address.
考题
How does client adapters connect to the network？（）A、 antennasB、 bridgesC、 access pointsD、 routers
考题
Which two statements about VPLS are true？ （）A、There is a full mesh of pseudowires.B、There is a partial mesh of pseudowires.C、Only L2TPv3 can be used for pseudowire establishment.D、There is split-horizon to avoid loops.
考题
What is the primary purpose of VPLS?（）A、to create a partial mesh of VPN sitesB、to remove MPLS from VPNsC、to create a point to multipoint topologyD、to enable IPsec accross the VPN
考题
单选题Two directly connected routers， R1 and R2， are both configured for OSPF graceful restart. R2 is able to switch packets in hardware， but R1 is not. If a network administrator logs on to R2 and performs a system reload， which will be the result？（）A
Traffic forwarded from R2 to or through R1 will continue to be forwarded based on the forwarding table state at the time of the reload.B
R2 will continue to forward traffic to R1， but R1 will drop the traffic because its neighbor adjacency with R2 has failed.C
R2 will continue forwarding traffic to and through R1， but R1 will drop this traffic because it is not capable of maintaining its forwarding state.D
All the traffic R2 is forwarding to or through R1 will be dropped while OSPF rebuilds its neighbor adjacency and forwarding tables.
考题
单选题What is the primary purpose of VPLS?（）A
to create a partial mesh of VPN sitesB
to remove MPLS from VPNsC
to create a point to multipoint topologyD
to enable IPsec accross the VPN
考题
单选题A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. Assuming as many default s ettings as possible are used on all four routers, which of the following is true about the next - hop IP address for routes R1 learns over its iBGP connection to R2?（）A
The next hop is I2's BGP RIDB
The next hop is I2's IP address used on the R2 - I2 neigh bor relationshipC
The next hop is R2's BGP RIDD
The next hop is R2's IP address used on the R1 - R2 neighbor relationship
考题
多选题Which two statements about VPLS are true？ （）AThere is a full mesh of pseudowires.BThere is a partial mesh of pseudowires.COnly L2TPv3 can be used for pseudowire establishment.DThere is split-horizon to avoid loops.
考题
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
考题
单选题A company has a Frame Relay WAN with one central - site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of t he 100 branch routers. All routers use point - to - point subinterfaces and one subnet per PVC. Which of the following is true about OSPF in this design?（）A
The central site router has 100 fully adjacent neighborships with the 100 branchesB
The central site router has neighborships with all branch routers, but fully adjacent neighbors with only two branchesC
The central site router has a neighborship with the Frame Relay switcHD
None of the other answers is correct
考题
多选题A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at th e ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the Enterprise for IP connectivity between the two routers. Which of the following could be used to prevent potential routing loops in this design?（）AUsing an iBGP mesh inside the Enterprise coreBConfiguring default routes in the Enterprise pointing to both R1 and R2CRedistributing BGP routes into the Enterprise IGPDTunneling the packets for the i BGP connection between R1 and R2
考题
单选题A company has a Frame Relay WAN with one central - site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of the 100 branch routers. Which of the following could be true about the number of EIGRP neighbor ships?（）A
A partial mesh totaling 100: one between the central - site router and each of the 100 branches.B
A full mesh - (101 * 100) / 2 = 5050 - One neighborship between each pair of routers.C
101 - One between each router (including the central site) a nd its nearby PE router.D
None of the answers is correct.
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