Cisco 300-510 Online Practice Questions and Exam Preparation

Cisco 300-510 Online Questions & Answers

• Question 101:

  What is a feature of SRGB label values?

  A. They are used for adjacency segment identifiers.
  B. They allow IS-IS and OSPF to use overlapping ranges on a domain.
  C. They are locally significant.
  D. They are assigned to segment routing nodes and have global significance throughout the domain.
  D. They are assigned to segment routing nodes and have global significance throughout the domain.

• Question 102:

  After you change the IP address on an IOS XR router, you cannot ping the new address.

  Which step did you forget to complete?

  A. commit the configuration
  B. roll back the configuration
  C. merge the configuration
  D. save the running configuration
  A. commit the configuration

• Question 103:

  A network engineer is troubleshooting OSPF multiarea. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?

  A. hierarchical CLI
  B. DR support for topology management
  C. routing process enabled by default on all interfaces
  D. show ip ospf topology command
  A. hierarchical CLI

  ---

  OSPF Hierarchical CLI and CLI Inheritance Hierarchical CLI is the grouping of related network component information at defined hierarchical levels such as at the router, area, and interface levels. Hierarchical CLI allows for easier configuration, maintenance, and troubleshooting of OSPF configurations. When configuration commands are displayed together in their hierarchical context, visual inspections are simplified. Hierarchical CLI is intrinsic for CLI inheritance to be supported. With CLI inheritance support, you need not explicitly configure a parameter for an area or interface. In the software, the parameters of interfaces in the same area can be exclusively configured with a single command, or parameter values can be inherited from a higher hierarchical level--such as from the area configuration level or the router ospf configuration levels. More information: https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/routing/71x/b-routing-cg-ncs5500-71x/brouting-cg-ncs5500-71x_chapter_011.html#con_1059437

• Question 104:

  Refer to the exhibit.

  

  ISP_1 uses eBGP to connect to all clients. LDP with OSPF and IS-IS is used in the ISP_1 network. Client_A and Client_B are in the same VRF_VoD. After a software upgrade on all routers in the ISP_1 network, Client_A has lost the connection to Client_C. A network engineer must troubleshoot the connection from R1 to R4 via M. After initial checks, the engineer confirmed that all routes are installed correctly. Which two tasks must the engineer perform to correct the problem? (Choose two.)

  A. Configure next-hop-self under the BGP configuration on R42.
  B. Configure mpls label implicit-null under the global configuration on R31.
  C. Configure next-hop-unchanged under the BGP configuration on R31.
  D. Configure ip cef under the global configuration on R31.
  E. Configure send-label under the BGP configuration on R42.
  A. Configure next-hop-self under the BGP configuration on R42.
  E. Configure send-label under the BGP configuration on R42.

• Question 105:

  Refer to the exhibit.

  

  Early in the growth cycle of a small enterprise, the network engineering team implemented Segment Routing to support automation of the IPv4 network. As the network grew organically, more devices were added and the company migrated to

  SRv6. The company is now planning to significantly expand the number of hosts connected to R2 and R6, which will require further path manipulation.

  Which action must the team take to customize the route that traffic takes between endpoints in the network?

  A. Implement the flexible algorithm to customize the shortest path through the network
  B. Implement MLAG to reduce traffic load on heavily congested links
  C. Implement spanning-tree protocol to avoid loops between excess devices in the network
  D. Implement priority queuing to drop non ission-critical traffic
  A. Implement the flexible algorithm to customize the shortest path through the network

• Question 106:

  Which two statements about route reflectors are true? (Choose two.)

  A. Routes received from nonclient peers are reflected to route reflector clients as well as nonclient peers.
  B. Routes received from nonclient peers are reflected to route reflector cluster as well as OSPF peers.
  C. If a router received an iBGP route with the originator-ID attribute set to its own router ID, the route is discarded.
  D. Routes received from a route reflector client is reflected to other clients and nonclient peers.
  E. If a route reflector receives a route with a cluster-list attribute containing a different cluster ID, the route is discarded.
  C. If a router received an iBGP route with the originator-ID attribute set to its own router ID, the route is discarded.
  D. Routes received from a route reflector client is reflected to other clients and nonclient peers.

  ---

  http://www.networkers-online.com/blog/2009/02/bgp-route-reflector-basics/

• Question 107:

  Refer to the exhibit.

  

  CE1 and CE2 cannot communicate through the service provider BGP peering is established between PE1 and PE2. IS-IS is the only routing protocol running in the service provider core.

  What step can be done to troubleshoot the issue?

  A. Switch the IGPs running in the core from IS-IS to OSPF to support a Cisco MPLS TE tunnel from PE1 to PE2.
  B. Configure BGP between CE and PE routers.
  C. Confirm that IS-IS is running with metric-style narrow.
  D. Verify the MPLS LSPs.
  D. Verify the MPLS LSPs.

• Question 108:

  Refer to the exhibit.

  

  Unified MPLS is implemented on this network to provide end-to-end services. A network engineer noticed that R3 is failing to receive labels from R1. However, R2 is receiving labels from R1, R3 can ping R1 normally. Which action resolves the issue?

  A. Add the cdp run command to the link configuration between R1 and R3.
  B. Add the send-label keyword in the R1 neighbor statement for R3.
  C. Configure R1 to run Unified MPLS on both interfaces.
  D. Disable mpls Ip on the link between R1 and R3
  B. Add the send-label keyword in the R1 neighbor statement for R3.

• Question 109:

  What is a requirement of PIM-SM?

  A. It requires Cisco Express Forwarding to be enabled.
  B. It must be enabled on loopback interfaces only
  C. It requires OSPF to be configured on the network.
  D. It must use an RP
  D. It must use an RP

• Question 110:

  Refer to the exhibit.

  

  An engineer is comparing these RPL and route map configurations. Which two conclusions will the engineer reach? (Choose two.)

  A. RPL is applying policy only on BGP IPv6 address families, but the route map is applying policy on BGP IPv4 and IPv6 address families.
  B. RPL and the route map are applying only local preference 50 for prefix 172.22.0.0/16.
  C. RPL is applying local preference 100 and community (2:100) for multiple prefixes, but the route map is applying default local preference for multiple prefixes.
  D. RPL is applying local preference 50 and community (2:666) for prefix 172.22.0.0716. but the route map is applying only local preference 50 for the same prefix.
  E. RPL is applying local preference 50 and community (2:666) for all prefixes, but the route map is applying only local preference 50 for all prefixes.
  C. RPL is applying local preference 100 and community (2:100) for multiple prefixes, but the route map is applying default local preference for multiple prefixes.
  D. RPL is applying local preference 50 and community (2:666) for prefix 172.22.0.0716. but the route map is applying only local preference 50 for the same prefix.