350-501 practice questions 131–140

1. Question 131 · 377 in bank

   What is a characteristic of MVPN?

   • AIt bypasses the use of MPLS in the service provider core and transmits packets using IP only.
   • BIt uses pseudowires to route unicast and broadcast traffic over either a service provider MPLS or IP core.
   • CIt allows VRF traffic to use the service provider MPLS VPN to route multicast traffic.
   • DIt creates GRE tunnels to route multicast traffic over a service provider IP core.

   Show answer

   Answer: C

   Explanation

   C The Multicast VPN (MVPN) feature provides the ability to support multicast over a Layer 3 VPN. As enterprises extend the reach of their multicast applications, service providers can accommodate these enterprises over their Multiprotocol Label Switching (MPLS) core network. IP multicast is used to stream video, voice, and data to an MPLS VPN network core. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_mvpn/configuration/xe-16/imc-mvpn-xe-16-book/imc-cfg-mc-vpn.html

   Source: Adapted from community discussion — Troozi

   References

   • Cisco documentation

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2. Question 132 · 377 in bank

   Which action does the ingress VTEP perform on traffic between EVPN VXLAN overlays?

   • Arouting and bridging when doing asymmetric IRB
   • Bbridging when doing symmetric IRB
   • Crouting and tunneling when doing symmetric IRB
   • Drouting when doing asymmetric IRB

   Show answer

   Answer: A

   Explanation

   In the provided link you can find: With asymmetric IRB, the ingress VTEP performs both Layer-2 bridging and Layer-3 routing lookup, whereas the egress VTEP performs only Layer-2 bridging lookup.

   Source: Adapted from community discussion — Worgen44

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3. Question 133 · 377 in bank

   

   Refer to the exhibit. An engineer started to configure a router for OSPF. Which configuration must the engineer perform on the router without changing any interface configuration so that the router establishes an OSPF neighbor relationship with its peer?

   • Arouter(config)# router ospf 11router(config-if)# no passive-interface ethernet 1/1
   • Brouter(config)# interface ethernet 1/1router(config-if)# no shutdown
   • Crouter(config)# interface ethernet 1/1router(config-if)# ip ospf hello-interval
   • Drouter(config)# interface ethernet 1/1router(config-if)# ip ospf priority 0

   Show answer

   Answer: A

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4. Question 134 · 377 in bank

   

   Refer to the exhibit. What is the purpose of this JSON script?

   • AIt changes the existing password.
   • BIt updates a user authentication record.
   • CIt deletes a user's authentication record.
   • DIt confirms a user's login credentials.

   Show answer

   Answer: A

   References

   • Cisco documentation

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5. Question 135 · 377 in bank

   A network engineer must implement SNMPv2 with these parameters: ✑ Enable SNMP community string c1sc0 with read-only permissions. ✑ Enable interface index persistence. Restrict the SNMP community to only the monitoring server with IP address 198.18.19.100/32.

   

   ✑ Provide view-only access to ospfIfEntry and ospfNbrEntry. Which configuration must the engineer apply?

   • Aconfigure terminal access-list 5 permit 198.18.19.100 0.0.0.0 snmp-server view BLOCKED_VIEW internet excluded snmp-server view BLOCKED_VIEW ospfIfEntry included snmp-server view BLOCKED_VIEW ospfNbrEntry included snmp-server community c1sc0 view BLOCKED_VIEW RO snmp ifmib ifindex persist end
   • Bconfigure terminal access-list 5 permit 198.18.19.100 0.0.0.0 snmp-server view BLOCKED_VIEW internet excluded snmp-server view BLOCKED_VIEW ospfIfEntry included snmp-server view BLOCKED_VIEW ospfNbrEntry included snmp-server community c1sc0 view BLOCKED_VIEW RO 5 snmp ifmib ifindex persist end
   • Cconfigure terminal access-list 5 permit 198.18.19.100 0.0.0.0 snmp-server view BLOCKED_VIEW internet included snmp-server view BLOCKED_VIEW ospfIfEntry included snmp-server view BLOCKED_VIEW ospfNbrEntry included snmp-server community c1sc0 view BLOCKED_VIEW RO snmp ifmib ifindex persist end
   • Dconfigure terminal access-list 5 permit 198.18.19.100 0.0.0.0 snmp-server view BLOCKED_VIEW internet excluded snmp-server view BLOCKED_VIEW ospfIfEntry included snmp-server view BLOCKED_VIEW ospfNbrEntry included snmp-server community c1sc0 view BLOCKED_VIEW RW 5 snmp ifmib ifindex persist end

   Show answer

   Answer: B

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6. Question 136 · 377 in bank

   

   Refer to the exhibit. A network engineer is configuring customer edge routers to finalize a L2VPN over MPLS deployment. Assume that the AToM L2VPN service that connects the two CEs is configured correctly on the service provider network. Which action causes the solution to fail?

   • AOSPF does not work with L2VPN services.
   • BThe routing protocol network types are not compatible.
   • CA loopback with a /32 IP address has not been used.
   • DThe xconnect statement has not been defined.

   Show answer

   Answer: B

   Explanation

   The Answer is B, but the wording of this question is bad. Serial links default to P2P OSPF network type while a ethernet will default to broadcast. Both of the peers would become fully adjacent, but would have issues after the SPF calculation.. My first instinct was different encapsulations, and internetworking wasn't configured correctly, but this is ONLY a CE question. We must assume the Provide network is setup perfectly

   Source: Adapted from community discussion — [Removed]

   References

   • cisco.com documentation
   • Cisco documentation

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7. Question 137 · 377 in bank

   A network administrator must monitor network usage to provide optimal performance to the network end users when the network is under heavy load. The administrator asked the engineer to install a new server to receive SNMP traps at destination 192.168.1.2. Which configuration must the engineer apply so that all traps are sent to the new server?

   • Asnmp-server enable traps entity snmp-server host 192.168.1.2 public
   • Bsnmp-server enable traps bgp snmp-server host 192.168.1.2 public
   • Csnmp-server enable traps isdn snmp-server host 192.168.1.2 public
   • Dsnmp-server enable traps snmp-server host 192.168.1.2 public

   Show answer

   Answer: D

   Explanation

   If you don't specify which traps, you get all traps with this command https://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/13506-snmp-traps.html#:~:text=Commands-,The%20%20snmp%2Dserver%20host%20%20Command,-Issue%20the%20%20snmp snmp-server enable traps snmp-server host 192.168.1.2 public

   Source: Adapted from community discussion — thejag

   References

   • Cisco documentation

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8. Question 138 · 377 in bank

   What must a network engineer consider when designing a Cisco MPLS TE solution with OSPF?

   • AThe OSPF extensions and RSVP-TE must be enabled on all routers in the network.
   • BOSPF extensions for RSVP-TE are supported in Area 1.
   • CThe OSPF extensions and RSVP-TE must be enabled on the egress routers.
   • DOSPF extensions for RSVP-TE are implemented in Type 6, 7, and 8 LSAs.

   Show answer

   Answer: A

   References

   • Cisco documentation

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9. Question 139 · 377 in bank

   Which feature describes the adjacency SID?

   • AIt applies only to multipoint links.
   • BIt is globally unique.
   • CIt applies only to point-to-point links.
   • DIt is locally unique.

   Show answer

   Answer: D

   Explanation

   Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg- asr9k_chapter_010.pdf

   Source: Adapted from community discussion — thejag

   References

   • Cisco documentation
   • Cisco documentation

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10. Question 140 · 377 in bank

    

    Refer to the exhibit. A network engineer is in the process of implementing IS -IS Area 1 and Area 2 on this network to segregate traffic between different segments of the network. The hosts in the two new areas must maintain the ability to communicate with one another in both directions. Which additional change must be applied?

    • AReconfigure routers R2 and R5 as Level 1/Level 2 routers.
    • BReconfigure routers R1, R2, R5, and R6 as Level 1/Level 2 routers.
    • CReconfigure routers R4, R5, and R6 as Level 1 routers.
    • DReconfigure either R3 or R4 as a Level 1/Level 2 router.

    Show answer

    Answer: A

    Explanation

    I will have to go with option A... I read the following: "By default, the L1/L2 router allows one way passage of prefixes from L1 Area to L2 Area, but not in reverse." https://www.cisco.com/c/en/us/support/docs/ip/integrated-intermediate-system-to-intermediate-system-is-is/200293-IS-IS-Adjacency-and-Area-Types.html There is more within the link... I g2g, check it out.

    Source: Adapted from community discussion — Martiian

    References

    • Cisco documentation
    • juniper.net documentation

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350-501 practice, question 131. 377 questions available.