[Free] 2017(July) EnsurePass Examcollection Cisco 200-125 Dumps with VCE and PDF 301-310

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CCNA Cisco Certified Network Associate CCNA (v3.0)

Question No: 301 CORRECT TEXT – (Topic 7)

Central Florida Widgets recently installed a new router in their office. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC.

Configure the router per the following requirements: Name of the router is R2

Enable. secret password is cisco

The password to access user EXEC mode using the console is cisco2 The password to allow telnet access to the router is cisco3

IPV4 addresses must be configured as follows:

Ethernet network 209.165.201.0/27 – router has fourth assignable host address in subnet Serial network is 192.0.2.176/28 – router has last assignable host address in the subnet. Interfaces should be enabled.

Router protocol is RIPV2

Attention:

In practical examinations, please note the following, the actual information will prevail.

  1. Name or the router is xxx

  2. Enable. secret password is xxx

  3. Password In access user EXEC mode using the console is xxx

  4. The password to allow telnet access to the router is xxx

  5. IP information

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    Answer: Routergt;enable Router#config terminal Router(config)#hostname R2 R2(config)#enable secret Cisco 1 R2(config)#line console 0

    R2(config-line)#password Cisco 2 R2(config-line)#exit R2(config)#line vty 0 4

    R2(config-line)#password Cisco 3 R2(config-line)#login

    R2(config-line)#exit R2(config)#interface faO/0

    R2(config-if)#ip address 209.165.201.4 255.255.255.224 R2(config)#interface s0/0/0

    R2(config-if)#ip address 192.0.2.190 255.255.255.240 R2(config-if)#no shutdown

    R2(config-if)#exit R2(config)#router rip R2(config-router)#version 2

    R2(config-router)#network 209.165.201.0

    R2(config-router)#network 192.0.2.176 R2(config-router)#end

    R2#copy run start

    Question No: 302 – (Topic 7)

    An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.

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    Click the console connected to RouterC and issue the appropriate commands to answer the questions.

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    What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface?

    1. Attempts to telnet to the router would fail.

    2. It would allow all traffic from the 10.4.4.0 network.

    3. IP traffic would be passed through the interface but TCP and UDP traffic would not.

    4. Routing protocol updates for the 10.4.4.0 network would not be accepted from the fa0/0 interface.

Answer: B Explanation:

From the output of access-list 114: access-list 114 permit ip 10.4.4.0 0.0.0.255 any we can easily understand that this access list allows all traffic (ip) from 10.4.4.0/24 network

Question No: 303 – (Topic 7)

What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three.)

  1. source IP address

  2. source MAC address

  3. egress interface

  4. ingress interface

  5. destination IP address

  6. IP next-hop

Answer: A,D,E Explanation:

Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets.

Traditionally, an IP Flow is based on a set of 5 and up to 7 IP packet attributes. IP Packet attributes used by NetFlow:

  • IP source address

  • IP destination address

  • Source port

  • Destination port

  • Layer 3 protocol type

  • Class of Service

  • Router or switch interface

All packets with the same source/destination IP address, source/destination ports, protocol interface and class of service are grouped into a flow and then packets and bytes are tallied. This methodology of fingerprinting or determining a flow is scalable because a large amount of network information is condensed into a database of NetFlow information called the NetFlow cache.

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios- netflow/prod_white_paper0900aecd80406232.html

Question No: 304 – (Topic 7)

Scenario

Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.

The EIGRP routing protocol is configured.

You are required to troubleshoot and resolve the EIGRP issues between the various routers.

Use the appropriate show commands to troubleshoot the issues.

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The loopback interfaces on R4 with the IP addresses of 10.4.4.4/32, 10.4.4.5/32, and 10.4.4.6/32 are not appearing in the routing table of R5. Why are the interfaces missing?

  1. The interfaces are shutdown, so they are not being advertised.

  2. R4 has been incorrectly configured to be in another AS, so it does not peer with R5.

  3. Automatic summarization is enabled, so only the 10.0.0.0 network is displayed.

  4. The loopback addresses haven#39;t been advertised, and the network command is missing on R4.

Answer: B Explanation:

For an EIGRP neighbor to form, the following must match:

  • Neighbors must be in the same subnet

  • K values

  • AS numbers

  • Authentication method and key strings

  • Here, we see that R4 is configured for EIGRP AS 2, when it should be AS 1.

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    Question No: 305 – (Topic 7)

    Refer to the exhibit.

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    The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.)

    1. Configure the gateway on Host A as 10.1.1.1.

    2. Configure the gateway on Host B as 10.1.2.254.

    3. Configure the IP address of Host A as 10.1.2.2.

    4. Configure the IP address of Host B as 10.1.2.2.

    5. Configure the masks on both hosts to be 255.255.255.224.

    6. Configure the masks on both hosts to be 255.255.255.240.

    Answer: B,D Explanation:

    The switch 1 is configured with two VLANs: VLAN1 and VLAN2. The IP information of member Host A in VLAN1 is as follows: Address : 10.1.1.126

    Mask : 255.255.255.0

    Gateway : 10.1.1.254

    The IP information of member Host B in VLAN2 is as follows: Address : 10.1.1.12

    Mask : 255.255.255.0

    Gateway : 10.1.1.254

    The configuration of sub-interface on router 2 is as follows: Fa0/0.1 10.1.1.254/24 VLAN1

    Fa0/0.2 10.1.2.254/24 VLAN2

    It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong. The layer3 addressing information of Host B should be modified as follows:

    Address : 10.1.2.X Mask : 255.255.255.0

    Question No: 306 – (Topic 7)

    What Netflow component can be applied to an interface to track IPv4 traffic?

    1. flow monitor

    2. flow record

    3. flow sampler

    4. flow exporter

    Answer: A Explanation:

    Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring. Flow monitors consist of a record and a cache. You add the record to the flow monitor after you create the flow monitor. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record, which is configured for the flow monitor and stored in the flow monitor cache.

    For example, the following example creates a flow monitor named FLOW-MONITOR-1 and enters Flexible NetFlow flow monitor configuration mode:

    Router(config)# flow monitor FLOW-MONITOR-1 Router(config-flow-monitor)#

    Question No: 307 – (Topic 7)

    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.

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    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?

    1. The OSPF area is not configured properly.

    2. The priority on R1 should be set higher.

    3. The cost on R1 should be set higher.

    4. The hello and dead timers are not configured properly.

    5. A backup designated router needs to be added to the network.

    6. The OSPF process ID numbers must match.

    Answer: D Explanation:

    In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2.

    Question No: 308 – (Topic 7)

    Scenario

    Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.

    You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.

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    An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. What is causing the problem?

    1. There is an area ID mismatch.

    2. There is a PPP authentication issue; the username is not configured on R3 and R6.

    3. There is an OSPF hello and dead interval mismatch.

    4. The R3 router ID is configured on R6.

    Answer: D Explanation:

    Using the show running-config command we see that R6 has been incorrectly configured with the same router ID as R3 under the router OSPF process.

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    Question No: 309 – (Topic 7)

    Scenario

    Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.

    The EIGRP routing protocol is configured.

    You are required to troubleshoot and resolve the EIGRP issues between the various routers.

    Use the appropriate show commands to troubleshoot the issues.

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    Which path does traffic take from R1 to R5?

    1. The traffic goes through R2.

    2. The traffic goes through R3.

    3. The traffic is equally load-balanced over R2 and R3.

    4. The traffic is unequally load-balanced over R2 and R3.

    Answer: A Explanation:

    Using the 鈥渟how ip int brief command鈥?on R5 we can see the IP addresses assigned to this router. Then, using the 鈥渟how ip route鈥?command on R1 we can see that to reach 10.5.5.5 and 10.5.5.55 the preferred path is via Serial 1/3, which we see from the diagram is the link to R2.

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    Question No: 310 – (Topic 7)

    Refer to the exhibit.

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    Hosts in network 192.168.2.0 are unable to reach hosts in network 192.168.3.0. Based on the output from RouterA, what are two possible reasons for the failure? (Choose two.)

    1. The cable that is connected to S0/0 on RouterA is faulty.

    2. Interface S0/0 on RouterB is administratively down.

    3. Interface S0/0 on RouterA is configured with an incorrect subnet mask.

    4. The IP address that is configured on S0/0 of RouterB is not in the correct subnet.

    5. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.

    6. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA.

    Answer: E,F Explanation:

    From the output we can see that there is a problem with the Serial 0/0 interface. It is enabled, but the line protocol is down. There could be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU.

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