Cisco 350-501 Online Practice Questions and Exam Preparation

Cisco 350-501 Online Questions & Answers

• Question 551:

  When configuring traffic engineering tunnels in Cisco MPLS core network, you see the traffic is not taking the expected path in the core.

  Which command do you use to quickly check path of a TE tunnel?

  A. Traceroute mpls ipv4 -tunnel destination
  B. Ping
  C. show mpls traffic-engineering tunnels
  D. traceroute
  A. Traceroute mpls ipv4 -tunnel destination

  ---

  Explanation

• Question 552:

  Refer to the exhibit.

  

  What is the effect of this configuration?

  A. R1 supports a graceful restart operation on the peer, even if graceful restart is disabled on the peer.
  B. R1 supports a peer that is configured for LDP SSO/NSF as the peer recovers from an outage.
  C. R1 failovers only to a peer that is configured for LDP SSO/NSF.
  D. R1 failovers to any peer.
  B. R1 supports a peer that is configured for LDP SSO/NSF as the peer recovers from an outage.

  ---

  Explanation

• Question 553:

  A backbone carrier is approached by an ISP_A which provides L3VPN services. The ISP_A requires MPLS VPN services from the backbone carrier to establish connectivity between the two POPs of the ISP_A. Which label protocol should the backbone carrier use to provide the proper connectivity that the ISP_A requires?

  A. L2TPv3
  B. L2TPv2
  C. LDP
  D. GRE
  E. mGRE
  F. BGP
  A. L2TPv3

  ---

  Explanation

• Question 554:

  A network engineer is configuring a router to send multicast traffic for the 239.10.10.10 group.

  Which configuration must an administrator apply to an interface so that the router can forward the traffic?

  A. Cisco(config)# interface ethernet 1/0Cisco(config-if)# ip igmp max-groups action replace
  B. Cisco(config)# interface ethernet 1/0Cisco(config-if)# ip igmp filter
  C. Cisco(config)# interface ethernet 1/0Cisco(config-if)# ip igmp access-group 239.10.10.10
  D. Cisco(config)# interface ethernet 1/0Cisco(config-if)# ip igmp join-group 239.10.10.10
  D. Cisco(config)# interface ethernet 1/0Cisco(config-if)# ip igmp join-group 239.10.10.10

  ---

  Explanation

  The ip igmp join-group command is used on a router interface to simulate the presence of an IGMP host for a specific multicast group. By issuing the command ip igmp join-group 239.10.10.10, the router is configured to join the multicast group 239.10.10.10 and will receive multicast traffic for this group. This is useful for testing or when the router itself needs to receive the multicast stream.

  The correct configuration for joining a multicast group is outlined in the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course materials

• Question 555:

  DRAG DROP

  Drag and drop the OSs from the left onto the correct descriptions on the right.

  Select and Place:

  

  

  Explanation

  Explanation/Reference:

• Question 556:

  Refer to the exhibit.

  

  An engineer has started to configure a router for OSPF, as shown Which configuration must an engineer apply on the network so that area 15 traffic from R5 to R1 will prefer the route through R4?

  A. Place the link between R3 and R5 in a stub area to force traffic to use the route through R4.
  B. Increase the cost on the link between R2 and R4, to influence the path over R3 and R4.
  C. Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred.
  D. Implement a sham link on the between R3 and R2 to extend area 0 area 15.
  C. Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred.

  ---

  Explanation

• Question 557:

  A network operator with an employee ID: 1516:11:567 must implement a PIM-SSM multicast configuration on the customer's network so that users in different domains are able to access and stream live traffic. The IGMP version must be enabled to support the SSM implementation. Which action must the engineer perform on R1 to complete the SSM implementation?

  

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

  ---

  Explanation

  https://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3se/consolidated_guide/b_consolidated_3850_3se_cg_chapter_0100111.html

• Question 558:

  Refer to the exhibit.

  

  An engineering team must update the network configuration so that data traffic from router A to router D continues in case of a network outage between routers B and C. During a recent outage on the B-C link, the IGP traffic path was switched to the alternate path via routers E and F, but label forwarding did not occur on the new path.

  Which action ensures that traffic on the end-to-end path continues?

  A. Configure the same hello timer values for IGP and LDP
  B. Enable LDP Session Protection on routers A and D
  C. Bind the BFD protocol with IGP on all routers
  D. Enable MPLS LDP IGP Synchronization on all routers
  D. Enable MPLS LDP IGP Synchronization on all routers

  ---

  Explanation

  Enabling MPLS LDP IGP Synchronization ensures that the IGP advertises a route only if there is a corresponding label binding from LDP. This synchronization helps prevent blackholing traffic when there is a direct link failure in the network. When the B-C link failed, the IGP could find an alternate path via routers E and F, but without LDP synchronization, the labels for MPLS were not available on this new path, leading to traffic loss. By enabling LDP IGP Synchronization, routers will only use paths for which a complete set of labels exists, ensuring label forwarding occurs on the alternate path.

  The information provided is based on the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course materials, which cover the configuration, verification, troubleshooting, and optimization of Service Provider IP network infrastructures, including MPLS LDP IGP Synchronization

• Question 559:

  Refer to the exhibit.

  

  A network engineer must configure XR-PE1 for uninterruptible failover from the active RP to the standby RP. Neither peer device C-GW1 nor the core network of ASN 64512 support grateful restart extensions. Which configuration must the engineer apply to XR-PE1 to complete the task?

  A. nsr process-failures switchoverrouter ospf 100 nsf cisco
  B. router bgp 64512 nsrrouter ospf 100 nsrmpls ldp nsr
  C. nsr process-failures switchoverrouter bgp 64512 nsrrouter ospf 100 nsrmpls ldp nsr
  D. nsr process-failures switchoverrouter ospf 100 nsf letf
  B. router bgp 64512 nsrrouter ospf 100 nsrmpls ldp nsr

  ---

  Explanation

• Question 560:

  Refer to the exhibit.

  

  A network engineer must update the routing toward the web server with IP address 35.22.13.1. The primary path must be configured via the neighbor router with ID 1.1.1.1. However, local-preference configuration is not permitted on R1.

  Which task must the engineer perform on R1 to complete the implementation?

  A. Configure the device to choose the best MED from the same AS.
  B. Set the device to ignore the conditional MED if the route originated in a different autonomous system.
  C. Enable MED comparison between routes from neighbors in different AS.
  D. Implement deterministic MED to choose the best route from the different AS.
  C. Enable MED comparison between routes from neighbors in different AS.

  ---

  Explanation