300-410 practice questions 431–440

1. Question 431 · 578 in bank

   Select 2

   Which two protocols are used by a P router to transfer VPN traffic between PE routers in an MPLS network? (Choose two.)

   • ALDP
   • BRSVP
   • CMP-BGP
   • DBGP
   • EOSPF

   Show answer

   Answer: AB

   Explanation

   To enable MPLS on all routers in the core, you must configure a label distribution protocol. You can use either of the following as a label distribution protocol: • MPLS Label Distribution Protocol (LDP). • MPLS Traffic Engineering Resource Reservation Protocol (RSVP)

   Source: Adapted from community discussion — Tedmus

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2. Question 432 · 578 in bank

   Which feature is used by LDP in the forwarding path within the MPLS cloud?

   • ATDP
   • BTTL
   • CLSP
   • DIP forwarding

   Show answer

   Answer: C

   Explanation

   "LDP provides a standard methodology for hop-by-hop, or dynamic label, distribution in an MPLS network by assigning labels to routes that have been chosen by the underlying Interior Gateway Protocol (IGP) routing protocols. The resulting labeled paths, called label switch paths (LSPs), forward label traffic across an MPLS backbone to particular destinations." https://www.cisco.com/c/en/us/td/docs/ios/mpls/configuration/guide/convert/mp_ldp_book/mp_ldp_overview.html

   Source: Adapted from community discussion — Horsefeathers

   References

   • Cisco documentation

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3. Question 433 · 578 in bank

   

   Refer to the exhibit. An engineer must configure router R101 for SSH access on ports 2001 through 2011. After the configuration, some expected ports were inaccessible. Which command resolves the issue?

   • Aip ssh port 2001 rotary 11 line vty 0 4 transport input telnet
   • Bip ssh port 2000 rotary 11 line vty 0 4 transport input ssh
   • Cip ssh port 2000 rotary 1 11 line vty 0 4 transport input all
   • Dip ssh port 2001 rotary 1 11 line vty 0 4 transport input ssh

   Show answer

   Answer: D

   References

   • Cisco documentation

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4. Question 434 · 578 in bank

   Select 2

   Which two features are required for MPLS forwarding on which types of routers? (Choose two.)

   • AMPLS on PE and core routers
   • BLDP on PE and core routers
   • CMPLS on CE and core routers
   • DLDP on PE and CE routers
   • ECEF on PE and CE routers

   Show answer

   Answer: AB

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5. Question 435 · 578 in bank

   

   Refer to the exhibit. Which action restores OSPF adjacency between R1 and R2?

   • AChange the IP MTU of R2 Fa0/0 to 1300.
   • BChange the IP MTU of R1 Fa1/0 to 1500.
   • CChange the IP MTU of R2 Fa0/0 to 1500.
   • DChange the IP MTU of R1 Fa1/0 to 1300.

   Show answer

   Answer: C

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6. Question 436 · 578 in bank

   

   Refer to the exhibit. Which action resolves the IP SLA for the UDP jitter problem between R4 and R3 Ethernet 0/1 IP addresses?

   • ADelete and configure the ip sla 6500 command with R3 e0/1 IP address.
   • BConfigure the ip sla 6500 command with R3 e0/1 IP address.
   • CConfigure the ip sla responder command with R4 E0/1 IP address.
   • DDelete and configure the ip sla responder command with R4 E0/1 IP address.

   Show answer

   Answer: A

   Explanation

   you can't modify ip sla once running and the destination ip address configured is wrong. so we need to delete the ip sla and configured again with the right destination ip address 209.165.201.2

   Source: Adapted from community discussion — jabal93

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7. Question 437 · 578 in bank

   

   Refer to the exhibit. An engineer configured user login based on authentication database on the router, but no one can log into the router. Which configuration resolves the issue?

   • Aaaa authentication login default local
   • Baaa authorization network default local
   • Caaa authentication login default enable
   • Daaa authorization exec default local

   Show answer

   Answer: A

   Explanation

   Issue: No one can log into the router Based on the options, need to configure a method that allows logins to the router. B - invalid 'network' isn't a configurable option C - no enable password configured from output D - not concerned with authorization A is the best choice next command would be to configure on line vty (config-line) login authentication default

   Source: Adapted from community discussion — kldoyle97

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8. Question 438 · 578 in bank

   

   Refer to the exhibit. Which action allows the engineer to successfully copy running-config to the TFTP server?

   • AAdd a route in the switch to the TFTP server.
   • BAdd the TFTP server configuration in the switch.
   • CUse TFTP server IP address 10.0.1.1.
   • DUse file name Switch-confg.txt.

   Show answer

   Answer: A

   Explanation

   it´s A The problem lies in the IP address provided for the TFTP server during the copy command. The TFTP server's IP address is 10.0.0.2, but the engineer mistakenly entered 10.0.0.1 These IP addresses are on different subnets (10.0.0.0/24 & 10.0.1.0/24). The switch needs a route to reach the TFTP server, as they are not on the same subnet and without a route, the switch cannot communicate with the TFTP server.

   Source: Adapted from community discussion — [Removed]

   References

   • cisco.com documentation

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9. Question 439 · 578 in bank

   

   Refer to the exhibit. UserPC receives the IP address but does not register to the call manager. Which command in ip dhcp pool VLAN200_USER_VOICE resolves the issue?

   • Aoption 150 ip 10.221.10.10
   • Boption 15 ip 10.221.10.10
   • Coption 160 ip 10.221.10.10
   • Doption 117 ip 10.221.10.10

   Show answer

   Answer: A

   Explanation

   option 150 "This option is commonly used to specify the IP address of a TFTP server available to the DHCP client. This is often used in VoIP environments where IP phones need to know the location of a TFTP server to download their configuration files."

   Source: Adapted from community discussion — Horsefeathers

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10. Question 440 · 578 in bank

    

    Refer to the exhibits. To provide reachability to network 10.1.1.0/24 from R5, the network administrator redistributes EIGRP into OSPF on R3 but notices that R4 is now taking a suboptimal path through R5 to reach 10.1.1.0/24 network.

    

    Which action fixes the issue while keeping the reachability from R5 to 10.1.1.0/24 network?

    • AChange the administrative distance of the external EIGRP to 90.
    • BApply the outbound distribution list on R5 toward R4 in OSPF.
    • CChange the administrative distance of OSPF to 200 on R5.
    • DRedistribute OSPF into EIGRP on R4.

    Show answer

    Answer: A

    Explanation

    The subnet 10.1.1.1/24 is redistributed into EIGRP domain so it will have the Administrative Distance (AD) of 170. Therefore R4 also learns about this subnet advertised from R2 with the same AD of 170.In the other hand, subnet 10.1.1.0/24 is also redistributed into OSPF on R3 so R5 & R4 will learn about this subnet with AD of 110, which is better than the above AD of 170 so R4 will choose path R4 -> R5 -> R3 -> R2 -> R1. In order to solve this problem, we can configure an outbound distribute list on R5 to prevent (filter out) this subnet from advertising to R4. Then R4 only has one way to reach R1, which is R4 -> R2 -> R1. But this method will remove the backup route so it is not the best solution.Another solution is to reduce the AD of the external EIGRP to a value smaller than 110. This method reserves the backup route in case of the main route fails

    Source: Adapted from community discussion — Hammad745

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300-410 practice, question 431. 578 questions available.