Cisco 350-501 Online Practice Questions and Exam Preparation

Cisco 350-501 Online Questions & Answers

• Question 281:

  Refer to the exhibit.

  

  Which part of the diagram will host OpenStack components?

  A. UCS Series
  B. Aggregation
  C. Access
  D. Core
  A. UCS Series

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  Explanation

  In the context of Cisco's Implementing and Operating Service Provider Network Core Technologies, the UCS Series is typically where OpenStack components would be hosted. OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a data center, all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface.

  Cisco SPCOR training materials and documentation provide detailed information on the implementation and operation of service provider technologies, including the hosting of OpenStack components on the UCS Series.

• Question 282:

  Which benefit is provided by FRR?

  A. It provides fast forwarding path failure detection times for all media.
  B. It provides rapid failure detection between forwarding engines.
  C. It provides performance data for the service provider network.
  D. It protects Cisco MPLS TE LSPs from link and node failures.
  D. It protects Cisco MPLS TE LSPs from link and node failures.

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  Explanation

  https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_path_protect/configuration/xe-16-11/mp-te-path-protect-xe-16-11-book/mpls-traffic-engineering-fast-reroute-link-and-node-protection.html

• Question 283:

  How can shared services in an MPLS Layer 3 VPN provide Internet access to the Customers of a central service provider?

  A. Static routes on CE routers allow route leakage from a PE global routing table.
  B. The CE router can establish a BGP peering to a PE router and use the PE device to reach the Internet.
  C. The customer VRF uses route targets to import and export routes to and from a shared services VRF.
  D. Route distinguishers are used to identify the routes that CEs can use to reach the Internet.
  C. The customer VRF uses route targets to import and export routes to and from a shared services VRF.

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  Explanation

  In MPLS Layer 3 VPNs, shared services such as Internet access can be provided through the use of a shared services VRF (Virtual Routing and Forwarding). The customer VRF uses route targets to import routes from the shared services VRF, which contains the routes to the Internet. This allows the customer sites to access the Internet without compromising the isolation of their private networks. References: The concept of shared services VRF and the use of route targets for importing and exporting routes are common practices in MPLS VPN implementations.

  https://community.cisco.com/t5/service-providers-documents/providing-internet-access-for-mpls-l3-vpns/ta-p/3109924

• Question 284:

  Refer to the exhibit.

  

  An engineer configured R6 as the headend LSR of an RSVP-TE LSP to router XR2, with the dynamic path signaled as R6-R2-R5-XR2. and set the OSPF cost of all links to 1. MPLS autotunnel backup Is enabled on all routers to protect the LSP.

  Which two NNHOP backup tunnels should the engineer use to complete the implementation? (Choose two.)

  A. The R6 backup tunnel path R6-R1-R4-R5.
  B. The R2 backup tunnel path R2-R5 across the alternate link.
  C. The R2 backup tunnel path R2-R1-R4-XR1-XR2.
  D. The R6 backup tunnel path R6-R2-R5
  E. The R6 backup tunnel path R6-R1-R2.
  A. The R6 backup tunnel path R6-R1-R4-R5.
  C. The R2 backup tunnel path R2-R1-R4-XR1-XR2.

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  Explanation

• Question 285:

  Which function does RSVP perform in a Cisco MPLS TE environment?

  A. It establishes targeted LDP sessions between neighbors that are directly connected.
  B. It signals to LDP protocol along the path that a Cisco MPLS TE will be configured.
  C. It reserves bandwidth for LDP sessions between routers participating in a Cisco MPLS TE.
  D. It reserves the bandwidth along the path between the head-end and tail-end router.
  D. It reserves the bandwidth along the path between the head-end and tail-end router.

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  Explanation

• Question 286:

  What is the difference between SNMP and model-driven telemetry?

  A. SNMP uses the YANG data modeling language.
  B. Telemetry uses traps and inform messages to deliver data to a network administrator on a polling basis.
  C. Telemetry allows for modeled network data to be pushed to the network administrator on an as-needed basis.
  D. SNMP pushes network data to the network administrator whenever it is queried.
  C. Telemetry allows for modeled network data to be pushed to the network administrator on an as-needed basis.

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  Explanation

  The difference between SNMP (Simple Network Management Protocol) and model-driven telemetry lies in their data delivery mechanisms. Telemetry allows for modeled network data to be pushed to network administrators on an as-needed basis, providing real-time insights into network performance and health. On the other hand, SNMP typically relies on polling mechanisms where network administrators request data at specific intervals. References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide

• Question 287:

  You are configuring MPLS traffic-engineering tunnels in the core. Which two ways exist for the tunnel path across the core? (Choose two )

  A. Tunnel links inherit IGP metrics by default unless overridden
  B. Tunnels can be configured with dynamic path or explicitly defined path
  C. A zero bandwidth tunnel is not a valid option
  D. The bandwidth statement creates a "hard" reservation on the link-The dynamic path option is supported only with IS-IS
  A. Tunnel links inherit IGP metrics by default unless overridden
  B. Tunnels can be configured with dynamic path or explicitly defined path

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  Explanation

• Question 288:

  Which QoS model allows hosts to report their OoS needs to the network?

  A. DiffServ
  B. CB-WFQ
  C. IntServ
  D. MQC
  B. CB-WFQ

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  Explanation

  

• Question 289:

  Refer to the exhibit.

  

  The operations team is implementing an LDP-based configuration in the service provider core network with these requirements:

  1. R1 must establish LDP peering with the loopback IP address as its Router-ID.

  2. Session protection must be enabled on R2.

  How must the team update the network configuration to successfully enable LDP peering between R1 and R2?

  A. Change the LDP password on R2 to Cisco.
  B. Configure mpls ldp router-id loopback0 on R1 and R2.
  C. Configure LDP session protection on R1.
  D. Change the discover hello hold time and interval to their default values.
  B. Configure mpls ldp router-id loopback0 on R1 and R2.

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  Explanation

• Question 290:

  After recent network outages and customer complaints, a large Tier 1 service provider has asked a network engineer to implement MPLS OAM policy on all Provider Edge devices in the MPLS network. To improve network performance and reliability, the policy must be able to detect 2% packet drops and a delay of 0.05 seconds. The solution must be based on RFC 6374 and RFC 4379 standards for MPLS OAM. The CCM to detect connectivity issues has already been configured with interval 1000.

  Which two actions must the engineer take to achieve the goal? (Choose two.)

  A. Set loopback delay-frequency 50 and drop-threshold 0.2 on the PE routers.
  B. Implement mpls ldp tracing on the PE and P routers.
  C. Implement mpls oam policy oam on the PE routers.
  D. Implement mpls ip oam map-policy on the PE routers.
  E. Set loss-threshold 2 and delay-threshold 50 on the P routers.
  A. Set loopback delay-frequency 50 and drop-threshold 0.2 on the PE routers.
  C. Implement mpls oam policy oam on the PE routers.

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  Explanation