多选题While troubleshooting a routing problem on the company EIGRP network you discover that one ofthe routers is failing to establish adjacencies with its neighbor. What is a likely cause of thisproblem between neighbors？（）AThe K-values do not matchBThe hol

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While troubleshooting a routing problem on the company EIGRP network you discover that one ofthe routers is failing to establish adjacencies with its neighbor. What is a likely cause of thisproblem between neighbors？（）

• A、The K-values do not match
• B、The hold times do not match
• C、The hello times do not match
• D、The AS numbers do not match

第4题：

When EIGRP is used as the PE-CE routing protocol which of these statements is correct?（）

• A、EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS
• B、Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured
• C、Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links
• D、Configure of the VPN is only required on the PE router

第5题：

What parameters must you specify when you enable EIGRP routing?（）

• A、The broadcast address, and AS number
• B、The network number and AS number
• C、EIGRP routing, network number and passive interface
• D、EIGRP routing, network number, and AS

第6题：

How will router A choose a path to the 10.1.2.0/24 network when different routing protocols are configured (Choose three.)（）。

• A、If RIPv2 is the routing protocol, only the path AD will be installed in the routing table by default.
• B、If RIPv2 is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by default.
• C、If EIGRP is the routing protocol, only the path AD will be installed in the routing table by default.
• D、If EIGRP is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by default.
• E、If EIGRP and OSPF are both running on the network, the EIGRP paths will be installed in the routing table.
• F、If EIGRP and OSPF are both running on the network, the OSPF paths will be installed in the routing table.

第7题：

While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）

• A、Some query or reply packets are lost between the routers
• B、The neighboring router starts receiving route updates from this router
• C、A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）
• D、The neighboring router stops receiving ACK packets from this router

第8题：

EIGRP is being used as the routing protocol on the company network. While troubleshooting somenetwork connectivity issues， you notice a large number of EIGRP SIA （Stuck in Active） messages.What causes these SIA routes？（）

• A、The neighboring router stops receiving ACK packets from this router
• B、The neighboring router starts receiving route updates from this router
• C、The neighboring router is too busy to answer the query （generally caused by high CPUutilization）
• D、The neighboring router is having memory problems and cannot allocate the memory to processthe query or build the reply packet

第9题：

When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful.What is the next thing that should be checked?（）

• A、Verify that the EIGRP hello and hold timers match exactly.
• B、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.
• C、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.
• D、Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.

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A network administrator is designing a Cisco network for a large company. The network must be able to use minimal bandwidth for routing updates, converge quickly, and support VLSM, CIDR, IP and IPX. Which routing protocol will best fit the requirements of this network?（）

• A、RIP v1
• B、RIP v2
• C、IGRP
• D、OSPF
• E、EIGRP

第15题：

A new building has been added to the enterprise campus network， providing client access for desktop PCs， laptops， and IP phones for employees and guests. During verification， only a few laptops using  wireless are reported to have problems， while other desktops， IP phones， and most other wireless laptops are fully operational. Additional information received about the problem indicates that， while the problematic wireless laptops cannot reach internal corporate websites， they can reach the Internet.  Where should troubleshooting about this connectivity issue be focused？（）

• A、client network configuration
• B、VLAN mapping
• C、routing protocols
• D、first-hop redundancy protocol

第16题：

While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?（）

• A、Some quer y or reply packets are lost between the routers.
• B、The neighboring router starts receiving route updates from this router.
• C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).
• D、Th e neighboring router stops receiving ACK packets from this router.

第17题：

You have implemented mutual route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one o f the OSPF routers within the OSPF routing domain, you are seeing some, but not all of the expected routes. Which two things should you verify to troubleshoot this problem?（）

• A、The border router is using a proper seed metric for OSPF
• B、The border ro uter is using a proper seed metric for EIGRP
• C、The administrative distance is set for OSPF and EIGRP
• D、The missing EIGRP routes are present in the routing table of the border router
• E、The subnet keyword on the border router in the redistribute EIG RP command

第18题：

You have implemented mutua l route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one of the EIGRP routers within the EIGRP routing domain, you are seeing some, but not all of the expected routes. What should you verify to troubleshoot this problem?（）

• A、The border router is using a proper seed metric for OSPF
• B、The border router is using a proper seed metric for EIGRP
• C、The administrative distance is set for OSPF and EIGRP
• D、The missing OSPF routes are present in the routing  table of the border router
• E、The subnet keyword on the border router in the redistribute OSPF command

第19题：

Which three statements about EIGRP are true?（）

• A、EIGRP converges fast RIP because of DUAL and backup routes that are stored in the topology table.
• B、EIGRP uses a hello protocol to establish neighbor relationships
• C、EIGRP uses split horizon and reverse poisoning to avoid routing loops.
• D、EIGRP uses periodic updates to exchange routing information
• E、EIGRP allows routers of different manufacturers to interoperate
• F、EIGRP supports VLSM and authentication for routing updates.
• G、EIGRP use a broadcast address to send routing information.

第20题：

Which two steps below should you perform on the hub router while configuring EIGRP routing over  DMVPN （mGRE tunnel）？ （）

• A、Set the NHRP hold time to match the EIGRP hold time
• B、Add the enable eigrp stub command
• C、Add the disable eigrp as-member split-horizon command
• D、Add the disable eigrp as-member next-hop-self command

第21题：

While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）

• A、The data link layer
• B、The application layer
• C、The access layer
• D、The session layer
• E、The network layer

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