Cisco 350-501 Online Practice Questions and Exam Preparation

Cisco 350-501 Online Questions & Answers

• Question 481:

  Refer to the exhibit.

  

  If router RA is configured as shown, which IPv4 multicast address space does it use?

  A. 224.0.0.0/8
  B. 225.0.0.0/8
  C. 232.0.0.0/8
  D. 239.0.0.0/8
  C. 232.0.0.0/8

  ---

  Explanation

  The router RA is configured with the command "ip pim ssm default". This configuration enables Source- Specific Multicast (SSM) for the default range of 232.0.0.0/8, which is the IPv4 multicast address space reserved for SSM by IANA (Internet Assigned Numbers Authority). In SSM, data traffic is delivered to a specific group of subscribers identified by the combination of both source and multicast addresses, enhancing efficiency and security.

  https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/multicast/configuration_guide/b_mc_3se_3850_cg/b_mc_3se_3850_cg_chapter_01011.html

• Question 482:

  An engineer must extend Layer 2 between two campus sites connected through an MPLS backbone that encapsulates Layer 2 and Layer 3 data. Which action must the engineer perform on the routers to accomplish this task?

  A. Configure QoS for MPLS and E-ACCESS.
  B. Configure a EtherChannel for E-LAN.
  C. Configure a pseudowire for E-LINE.
  D. Configure Cisco MPLS TE for use with E-TREE.
  C. Configure a pseudowire for E-LINE.

  ---

  Explanation

  In this scenario, E-LINE pseudowires are suitable because they create a point-to-point Ethernet connection between the two sites. E-LINE pseudowires are commonly used for point-to-point Ethernet services.

• Question 483:

  DRAG DROP

  Drag and drop the message types from the left onto the target field of the message originator on the right.

  Select and Place:

  

  

  Explanation

  Explanation/Reference:

• Question 484:

  Refer to the exhibit.

  

  An engineer is configuring path selection on router R1 for two ASNs as shown. Which additional task must the engineer perform on Router 1 so that all outbound traffic utilizes the link between R1 and R3 to reach ASN 4567?

  A. Configure a low weight on the peer to ASN 4567.
  B. Configure a high weight on the peer to ASN 4567.
  C. Configure an AS path prepend on the peer to ASN 4567.
  D. Configure a high med on the peer to ASN 4567.
  B. Configure a high weight on the peer to ASN 4567.

  ---

  Explanation

  In Cisco's path selection process, the weight attribute is the first criterion for selecting a path. It is a Cisco- specific parameter, local to the router, and it is not propagated in routing updates. The path with the highest weight is preferred. Therefore, configuring a high weight on the peer to ASN 4567 will make Router R1 prefer this path for all outbound traffic directed towards ASN 4567.

  References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) - Cisco SPCOR Training and Certification

• Question 485:

  How does Inter-AS Option-A function when two PE routers in different autonomous systems are directly connected?

  A. The two routers share all Inter-AS VPNv4 routes and redistribute routes within an IBGP session to provide end-to-end reach.
  B. The two routers establish an MP-EBGP session to share their customers' respective VPNv4 routes.
  C. The two routers treat one another as CE routers and advertise unlabeled IPv4 routes through an EBGP session.
  D. The two routers share VPNv4 routes over a multihop EBGP session and set up an Inter-AS tunnel using one another's label.
  C. The two routers treat one another as CE routers and advertise unlabeled IPv4 routes through an EBGP session.

  ---

  Explanation

• Question 486:

  DRAG DROP

  Drag and drop the NAT64 descriptions from the left onto the correct NAT64 types on the right.

  Select and Place:

  

  

  Explanation

  Explanation/Reference:

  Stateful (It has 1: N translation, It uses address overloading, It conservers IPv4 addresses) Stateless (It is limited on the number of endpoints, It mandates IPv4-translatable IPv6 address allocation)

• Question 487:

  Which configuration enables BGP FlowSpec client function and installation of policies on all local interfaces?

  A. flowspecaddress-family ipv4local-install interface-all
  B. flowspecaddress-family ipv4install interface-all local
  C. flowspecaddress-family ipv4install interface-all
  D. flowspecaddress-family ipv4local-install all-interface
  A. flowspecaddress-family ipv4local-install interface-all

  ---

  Explanation

  https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-16-6/irg-xe-16-6-book/C3PL-BGP-Flowspec-Client.html

• Question 488:

  You are testing the capabilities of MPLS OAM ping. Which statement is true?

  A. An LSP is not required for the reply to reach the ingress MPLS router.
  B. An LSP breakage results in the ingress MPLS router never receiving any reply.
  C. MPLS OAM ping works solely with P2P LSPs.
  D. MPLS OAM ping works solely with Cisco MPLS TE.
  A. An LSP is not required for the reply to reach the ingress MPLS router.

  ---

  Explanation

  When there is an LSP breakage during the testing of MPLS OAM ping capabilities, the ingress MPLS router does not receive any reply because MPLS OAM ping is used to verify connectivity over Label Switched Paths (LSPs), and if an LSP is broken, the echo request will not reach the egress router, resulting in no echo reply being sent back.

  https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/mpls/configuration/guide/b-mpls-cg53x-asr9k/b-mpls-cg53x-asr9k_chapter_01000.html

• Question 489:

  

  Refer to the exhibit the 2.6.6.6/32 prefix is flapping when PE1 is flapping. Which action can fox this issue?

  A. On PE2, allow only redistribution from BGP into IS-IS on PE3, allow only redistribution from IS-IS into BGP
  B. On PE2 and PE3 reconfigure redistribute BGP into IS-IS using the metric-type external parameter
  C. configure a sham link between PE2 and PE3
  D. configure all IS-IS instances as level-1-only
  B. On PE2 and PE3 reconfigure redistribute BGP into IS-IS using the metric-type external parameter

  ---

  Explanation

• Question 490:

  Refer to the exhibit.

  

  ISP_A is about to launch a new internet service. ISP_A is already providing MPLS VPN Layer 3 services to Customer_A and Customer_B, which are connected to ISP_A via OSPF. A network engineer completed the BGP and VRF configurations on R2 to support the new internet service.

  Which additional action completed the launch?

  A. Implement the BGP routing protocol in the customer VRFs on R1 and R2
  B. Import route-target 62:101 into the customer VRFs on R1 and R3.
  C. Enable the route-replicate command under the customer VRFs on R1 and R2
  D. Activate NAT CE in the customer VRFs on R1. R2. and R3.
  A. Implement the BGP routing protocol in the customer VRFs on R1 and R2

  ---

  Explanation

  To complete the launch of the new internet service, ISP_A needs to ensure that routes are shared between different VRFs for Customer_A and Customer_B. Importing route-target 62:101 into the customer VRFs on R1 and R3 allows for the exchange of routes between these VRFs, facilitating the necessary connectivity for the new service. References: Cisco SPCOR