Cisco 300-510 Online Practice Questions and Exam Preparation

Cisco 300-510 Online Questions & Answers

• Question 111:

  When deploying a nationwide network of routers, what is the benefit of using BGP confederations?

  A. availability
  B. scalability
  C. security
  D. automatability
  B. scalability

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  Explanation Explanation/Reference:https://www.routerfreak.com/bgp-network-design-bgp-confederation/

• Question 112:

  Refer to the exhibit.

  

  Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?

  A. MED
  B. local preference
  C. origin
  D. weight
  B. local preference

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  Explanation Explanation/Reference:Weight is local to the router while LP allows routers in an AS with multiple exit points to choose which exit point is used to reach a particular NLRI.

• Question 113:

  Refer to the exhibit.

  

  A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

  A. Configure all routers as Level 1 routers.
  B. Remove the link metric for the link from router R1 to router R2.
  C. Change the link metric for the link from router R1 to router R2 to 1.
  D. Configure all routers as Level 1 / Level 2 routers.
  C. Change the link metric for the link from router R1 to router R2 to 1.

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  Explanation Explanation/Reference:The default link metric for IS-IS is 10, so changing the link from R1 to R2 to 1 will change the overall metric to R6 to 9 (8+1).

• Question 114:

  The operator must leverage automated steering and coloring with the design. Which two elements from an SR Policy tuple are used for automated steering inside of the network? (Choose two.)

  A. color
  B. candidate labels
  C. headend
  D. endpoint
  E. CM paths
  A. color
  D. endpoint

• Question 115:

  Which requirement must be met while using parameter with conditional matching in routing policy definition?

  A. Parameters must be used only in route maps.
  B. Parameters must start with the $ symbol.
  C. Parameters must be applied only to BGP statements.
  D. Parameters must be used in a hierarchal structure.
  D. Parameters must be used in a hierarchal structure.

• Question 116:

  Refer to the exhibit.

  

  This network is deployed with all connected links configured to run IS- IS.

  The routing protocol is enacted globally on each router, and the network engineer expects full routing Information to be shared among all routers. R5 is receiving routes from R4 but is missing routes from R1. Which action corrects the issue so that all routes are shared among the routers?

  A. Configure R5 in the same area as R1.
  B. Configure all routers to reside in the same area.
  C. Configure R1 and R5 as Level 1/Level 2 routers.
  D. Configure R3 as a Level 1 /Level 2 router.
  B. Configure all routers to reside in the same area.

• Question 117:

  Refer to the exhibit.

  

  Router1 and Router2 have shared routes in the OSPF database, but the routes are missing from their routing tables. Checking the prefix-list configuration on both routers, the engineer confirmed all networks are allowed. What action should the engineer take to fix the problem?

  A. Configure interface Serial1/0 on Router1 as a point-to-point interface
  B. Configure the two routers with different process IDs
  C. Switch the DR and BDR roles between the two routers
  D. Configure the two routers with different hello and dead timer values
  A. Configure interface Serial1/0 on Router1 as a point-to-point interface

• Question 118:

  What are two major differences between OSPF and IS-IS routing protocols? (Choose two.)

  A. OSPF uses IP protocol 89 for encapsulation, and IS-IS uses an IEEE 802.3 standard-based protocol for encapsulation.
  B. The OSPF default administrative distance is 115, and the default administrative distance for IS-IS is 110.
  C. The OSPF DR role can be preempted only when the active DR goes down, but the IS-IS DR role can be taken by a router with higher priority at any time.
  D. OSPF partially refreshes the LSA database every 30 minutes, and IS-IS refreshes the complete database every 60 minutes.
  E. An OSPF-enabled router is part of only one area, but an IS-IS-enabled router is part of multiple areas.
  A. OSPF uses IP protocol 89 for encapsulation, and IS-IS uses an IEEE 802.3 standard-based protocol for encapsulation.
  C. The OSPF DR role can be preempted only when the active DR goes down, but the IS-IS DR role can be taken by a router with higher priority at any time.

• Question 119:

  An engineer is troubleshooting slow performance issues on a customer's network after the last multicast configuration change was applied on it. While checking the running configuration on the router, the engineer notices there are many ip igmp join-group commands applied on several interfaces of the router which caused the high CPU utilization usage. What action must the engineer take to solve this issue?

  A. Configure all router interfaces to be process-switched by increasing the query interval
  B. Remove ip igmp join-group command on all unnecessary interfaces
  C. Remove unnecessary members from the IGMP group
  D. Configure ip igmp static-group command on all interfaces
  B. Remove ip igmp join-group command on all unnecessary interfaces

• Question 120:

  Refer to the exhibit.

  

  A customer reports that Host-1 is failing to receive streaming traffic from the IPTV source. The engineer has confirmed that hosts on router R2 are receiving traffic normally and that Host-1 is correctly sending subscription messages to join the IPTV stream. Which action must the engineer take to correct the problem?

  A. Remove IP PIM SSM and IGMP from interface GigabitEthernet 1/0/1 on R3 and configure under global configuration
  B. Configure IGMP version 3 under interface GigabitEthernet 1/0/1 on R3
  C. Configure IP PIM SSM and IGMP version 2 under interface GigabitEthernet 1/0/1 on R3
  D. Remove IP PIM SSM from the global configuration on R3 and configure it under the GigabitEthernet 1/0/1 interface
  B. Configure IGMP version 3 under interface GigabitEthernet 1/0/1 on R3