Cisco 300-510 Online Practice Questions and Exam Preparation

Cisco 300-510 Online Questions & Answers

• Question 21:

  CORRECT TEXT

  

  R2

  

  

  A. Check the answer in the explanation
  B. Placeholder
  C. Placeholder
  D. Placeholder
  A. Check the answer in the explanation

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  Explanation/Reference:

  Solution: R1 Int loopback0 Ip ospf 10 area 0

  Int loopback10 Ip ospf network point-to-point

  Int loopback20 Ip ospf network point-to-point

  Int loopback30 Ip ospf network point-to-point

  Router ospf 10 Area 1 range 172.16.100.0 255.255.252.0

  Copy run start

  Verification:

  

• Question 22:

  Refer to the exhibit.

  

  A network operator is getting the route for 10.11.11 0/24 from two upstream providers on #XR3. The network operator must configure #XR3 to force the 10.11.11.0/24 prefix to route via next hop of 10.0.0.9 as primary when available. Which of these can the operator use the routing policy language for, to enforce this traffic forwarding path?

  A. weight of 0 on the prefix coming from 192.168.0.2
  B. lower local preference on the prefix coming from 192.168.0.2
  C. higher local preference on the prefix coming from 192.168.0.1
  D. weight of 100 on the prefix coming from 192.168.0.1
  A. weight of 0 on the prefix coming from 192.168.0.2

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  Explanation Explanation/Reference:Because Weight is the first attribute in path selection algorithm and is 0 for eBGP routes by default. If we set it to 0, router will continue from weight to the bottom, and when comparing neighbor router IDs it will find 192.168.0.1 less than 192.168.0.2 and st path will be selected as the best

• Question 23:

  Refer to the exhibit.

  

  The green policy is designed with low delay, and the pink policy is designed with low cost. What is the next hop for node A on its way to node D, with the objective of achieving a low delay?

  A. 192.168.3.2
  B. 192.168.1.6
  C. 192.168.3.6
  D. 192. 168.1.2
  D. 192. 168.1.2

• Question 24:

  Refer to the exhibit.

  

  Router 1 has established an SR-TE tunnel with router 2. Which statement describes this configuration?

  A. Router 1 has a list of labels used to explicitly lay out a path to router 2.
  B. Router 1 and router 2 have a bidirectional tunnel set up with dynamic path selection.
  C. Router 1 is the head-end tunnel and has dynamically chosen a path to router 2.
  D. Router 2 is the head-end tunnel and has explicitly set a path to router 1.
  C. Router 1 is the head-end tunnel and has dynamically chosen a path to router 2.

• Question 25:

  What is the purpose of the confederation identifier in a BGP confederation?

  A. It identifies the autonomous system that belongs to the confederation.
  B. It advertises routes outside of the confederation's autonomous system.
  C. It reflects the route reflector duster ID within the confederation.
  D. It carries the AS number within the confederation s local autonomous system
  A. It identifies the autonomous system that belongs to the confederation.

• Question 26:

  Refer to the exhibit.

  

  A service provider has LDP and segment routing running in the network. Mobility traffic is carried through LDP and enterprise traffic is carried through segment routing. Which configuration must be implemented to connect the bank branch with the HUB site on routers?

  A. Configure segment-routing Sr-prefer prefix-list on AG1 and AG2 router for 10.10.10.10/24.
  B. Enable segment-routing Mpls Sr-prefer on CR1 and CR2 routers for 10.0.0.0/8.
  C. Enable segment-routing Mpls Sr-prefer on AG1 and AG2 routers for 10.0.0.0/8.
  D. Configure segment-routing sr-prefer prefix-list on CR1 and CR2 routers for 10.20.20.10/24.
  D. Configure segment-routing sr-prefer prefix-list on CR1 and CR2 routers for 10.20.20.10/24.

• Question 27:

  Refer to the exhibit.

  

  An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly?

  A. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
  B. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
  C. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
  D. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.
  D. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.

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  Explanation Explanation/Reference:Some level of load balancing is achieved by default as BGP prefers shortest AS_PATH for certain prefix (Cisco BGP path selection algorithm - rule 4) . If 1-7 rules gives no preference for certain prefix then with rule 8. Prefer lowest IGP metric to BGP next hop we can force traffic to R2 or R3 influencing load distribution.

• Question 28:

  Refer to the exhibit.

  

  A network operator is configuring BGP PIC on CE1 on already established neighborships with PE1 and PE2 inside the fully converged MPLS network. Which element needs to be implemented to make this feature function effectively?

  A. Bidirectional Forwarding Detection must be applied to the upstream facing BGP interfaces
  B. The operator must ensure that all prefixes have the same next-hop from PE1 and PE2 for BGP PIC
  C. A reserved BGP community of 1:10 must be used to denote the PIC feature set to the routing protocol
  D. BGP import/export policies must be applied on all devices for the routes needing BGP for PIC
  A. Bidirectional Forwarding Detection must be applied to the upstream facing BGP interfaces

• Question 29:

  Refer to the exhibit

  

  An engineer is troubleshooting a networking issue with several symptoms

  The shortest path from router R1 to R8 is underused and the longest path is overused

  Traffic from 10.1.1 1 to 10 8 8 8 is routed on the longest path Traffic between the R1 and the application server is experiencing packet drops and latency problems.

  Which action resolves the issue?

  A. Configure route leaking for the IP address Of the application server on router RI.
  B. Increase the RI to R2 link metric to 20.
  C. Configure a Level 2 IS-IS domain on router RI.
  D. Block the advertisement of the application server IP address to router R6.
  C. Configure a Level 2 IS-IS domain on router RI.

• Question 30:

  Refer to the exhibit.

  

  A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry.

  Which factor might explain this issue?

  A. Only the administratively scoped range is permitted
  B. Only ASM is permitted
  C. Only the default SSM range is permitted
  D. Only GLOP is permitted
  C. Only the default SSM range is permitted