Cisco 300-410 Online Practice Questions and Exam Preparation

Cisco 300-410 Online Questions & Answers

• Question 151:

  Examine the diagram below:

  

  Based on the diagram and the following partial output from Router R2, which networks will be present in the routing table of Router R1?

  

  A. 192.168.5.0
  B. 10.0.0.0
  C. 172.50.0.0
  D. 192.168.5.0 and 10.0.0.0
  D. 192.168.5.0 and 10.0.0.0

  ---

  The routes that will be present in Router R1 are 192.168.5.0 and 10.0.0.0. According to the output, only the route from EIGRP 55 will be redistributed to EIGRP 200. Therefore, the 10.0.0.0 network will be advertised to Router R1 from Router R2 and the 192.168.5.0 network, which is present in the routing table of Router R2, will be advertised to Router R1.

  The 192.168.5.0 network alone would not be correct. The 10.0.0.0 network will be present as well.

  The 172.50.0.0 network will not be present because Router 2 is not configured with a redistribution statement for that network. The required statement would be redistribute ospf 1.

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Configure and verify redistribution between any routing protocols or routing sources

  References:

  Cisco > Home > Support > Technology Support > IP > IP Version 6 > Configure > Configuration Examples and Technotes > Redistributing Routing Protocols

• Question 152:

  Refer lo the exhibit.

  

  The Customer Edge router wants to use AS 100 as the preferred ISP for all external routes and ISP-2 as a backup.

  Customer Edge route-map SETLP set local-preference 111 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETLP out neighbor 192.168.112.2 remote-as 200

  This configuration failed to send routes to AS 100 as the preferred path. Which set of configurations resolves the issue?

  A. route-map SETLP set local-preference 111 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETLP in
  B. route-map SETPP set as-path prepend 100 100 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETPP in
  C. route-map SETPP set as-path prepend 111 111 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETPP out
  D. route-map SETLP set local-preference 111 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETLP out
  A. route-map SETLP set local-preference 111 ! router bgp 65500 neighbor 192.168.111.1 remote-as 100 neighbor 192.168.111.1 route-map SETLP in

  ---

  https://community.cisco.com/t5/networking-knowledge-base/understanding-bgp-best-path-selection-manipulation/ta-p/3150576

• Question 153:

  Which protocol does VRF-Lite support?

  A. S-IS
  B. ODR
  C. EIGRP
  D. IGRP
  C. EIGRP

• Question 154:

  An engineer configured two routers connected to two different service providers using BGP with default attributes. One of the links is presenting high delay, which causes slowness in the network. Which BGP attribute must the engineer configure to avoid using the high-delay ISP link if the second ISP link is up?

  A. LOCAL_PREF
  B. MED
  C. WEIGHT
  D. AS-PATH
  A. LOCAL_PREF

• Question 155:

  How many labels are present in an MPLS Layer 3 packet traversing through the network without traffic engineering?

  A. 1
  B. 2
  C. 3
  D. 4
  A. 1

• Question 156:

  Refer to the exhibit

  

  An engineer is troubleshooting an OSPF adjacency issue between directly connected routers R1 and R2 Which configuration resolves the issue?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

• Question 157:

  Refer to the exhibit.

  

  After an engineer updates the configuration on the device, they noticed unexpected behavior. Which command resolves the issue by completely replacing the startup configuration?

  A. configure replace nvram:startup-config
  B. copy system:running.config nvram:startup-config
  C. configure replace nvram:private-config
  D. copy running-config startup-config
  A. configure replace nvram:startup-config

• Question 158:

  Which BGP attribute can be used to influence the path that incoming traffic takes into your AS from other Autonomous Systems?

  A. Metric manipulation
  B. AS_Path
  C. Weight
  D. Local Preference
  B. AS_Path

• Question 159:

  Refer to the exhibit. An engineer has configured R1 as EIGRP stub router. After the configuration, router R3 failed to reach to R2 loopback address.

  

  Which action advertises R2 loopback back into the R3 routing table?

  A. Add a static route for R2 loopback address in R1 and redistribute it to advertise to R3.
  B. Use a leak map on R1 that matches the required prefix and apply it with the distribute list command toward R3.
  C. Use a leak map on R3 that matches the required prefix and apply it with the EIGRP stub feature.
  D. Add a static null route for R2 loopback address in R1 and redistribute it to advertise to R3.
  B. Use a leak map on R1 that matches the required prefix and apply it with the distribute list command toward R3.

  ---

  The EIGRP stub feature is useful to prevent unnecessary EIGRP queries and to filter some routes that you advertise. What if you want to configure your router as a stub router but still make an exception to some routes that it advertises? That is possible with the leak-map feature. This is how to configure leak-map in this question:

  R1(config)#ip access-list standard R2_L0 R1(config-std-nacl)#permit host 2.2.2.2 R1(config)#route-map R2_L0_LEAK R2(config-route-map)#match ip address R2_L0 R1(config)#router eigrp 1 R1(config-router)#eigrp stub leak-map R2_L0_LEAK

• Question 160:

  You have a router that is running both OSPF and RIP. You have configured this router to perform mutual redistribution between the two protocols. The following conditions exist:

  The S0/0 interface, which is configured for RIP, is routing for the 172.16.5.0/24 network. The S0/1 interface, which is configured for OSPF, is routing for the 172.16.6.32/28 network.

  Users in the RIP domain are unable to connect to devices in the OSPF domain.

  What must be done to allow the OSPF routes to be redistributed into the RIP domain? (Choose two. Each correct answer is part of the solution.)

  A. Create a static route that points to 172.16.6.0/24 with a next hop of null0.
  B. Execute the passive-interface command on S0/0.
  C. Create a loopback address on the router
  D. Redistribute static routes into RIP.
  A. Create a static route that points to 172.16.6.0/24 with a next hop of null0.
  D. Redistribute static routes into RIP.

  ---

  The OSPF domain has a different mask than the RIP domain, and they are on the same major network. The OSPF domain's mask is also longer than the RIP domain's mask. Therefore, the RIP domain will not advertise routes learned from OSPF and redistributed into RIP. To solve this problem, you can create a static route to the major (classful) network 172.16.6.0/24, which includes all of the subnets in the OSPF domain, set the destination as null0, and then redistribute static routes into RIP. The following

  commands would enable this process:

  router1(config)# ip route 172.16.5.0 255.255.255.0 null0

  router1(config)# router rip

  router1(config-router)# redistribute static

  router1(config-router)# default metric 1

  You should include the metric as well to ensure redistribution. This will allow the 172.16.5.0/24 network to be advertised to the RIP domain and, when the frames arrive at the null0 interface, will ensure the routing table of the router will have routes to the specific subnets of the OSPF domain.

  You should not execute the passive-interface command. This would prevent the interface from advertising either RIP or OSPF routes, and would only allow RIP updates inbound. This would not solve the problem and will create additional problems when the router is unable to advertise RIP routes to the other routers in the RIP domain.

  You should not create a loopback address on the router. Loopback addresses are logical addresses that can be created and used as the source of routing updates. Under normal circumstances, if routing updates are sourced from a physical interface and the interface goes down, the route will be removed from the routing tables. Since a loopback interface cannot go down, it provides the advantage of keeping a route in the tables even if the physical interface that services the route goes down. Loopback

  interfaces are of no help in solving the redistribution problem.

  Objective:

  Layer 3 Technologies

  Sub-Objective:

  Configure and verify manual and autosummarization with any routing protocol

  References:

  Cisco > Home > Support > Technology Support > IP > IP Routing > Design > Design Technotes > Redistributing Between Classful and Classless Protocols: EIGRP or OSPF into RIP or IGRP