[Sep-2021] Dumps Brief Outline Of The 300-515 Exam - PrepAwayExam
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NEW QUESTION 40
While troubleshooting an AToM L2VPN service, a network consultant notices that the AC Layer 2 encapsulations are different. Which action should the consultant take in order to make the MPLS L2VPN work?
- A. tag-rewrite on the ingress and egress PE router
- B. nonrouted interworking setup to properly translate only the Layer 2 information from the AC
- C. interworking IP configuration on the last PE router before label disposition
- D. interworking IP configuration on both the AC terminations on the PEs
Answer: D
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_l2_vpns/configuration/xe-16-11/mp-l2-vpns- xe-16-11-book/l2vpn-interworking.html
NEW QUESTION 41
Refer to the exhibit.
Which statement about this configuration is true?
- A. Router 1 will accept multicast routes with a route-target of 12:1.
- B. Router 1 has statically defined thresholds for data MDT.
- C. 192.168.1.2 must be reachable by all routers participating in the mvpn-intranet MVRF.
- D. The MVRF must be configured on each router on the customer and service provider networks.
Answer: A
NEW QUESTION 42
In Layer 3 MPLS VPN implementations, if some of the VPNv4 routes on one PE router do not appear on another PE router, what could be the problem?
- A. RT export and import configuration errors
- B. VRF name mismatch between the PE routers
- C. RD mismatch between the PE routers
- D. RD export and import configuration errors
Answer: A
Explanation:
Section: Layer 3 VPNs
Explanation/Reference: http://blog.initialdraft.com/archives/1537/
NEW QUESTION 43
In an Ethernet Virtual Circuit environment, which restriction do bridge domains have when STP is running?
- A. Bridge domains must be mapped to a different VLAN.
- B. The STP mode must be MSTP
- C. The STP mode must be RSTP or PVST+
- D. Bridge domains must belong to different MST instances.
Answer: B
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/ce/b_ce_xe-313s- asr920-book/b_ce_xe-313s-asr920- book_chapter_01.html#reference_770349446ED24E83821EF701DDC46BFD
NEW QUESTION 44
You try to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured, but you receive an error.
Which action must you take to correct the problem?
- A. Configure static routes for the VRF.
- B. Change the source IP address.
- C. Add the IP address to the VRF table.
- D. Remove the VRF from the interface.
Answer: D
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.html
NEW QUESTION 45
Refer to the exhibit.
An organization is running H-VPLS on a network comprising four routers in a hub-and-spoke topology with R1 as the hub An engineer added a new spoke with multiple VCs to the network, and now traffic cannot flow properly How should the engineer update the configuration on R1 to correct the problem?
- A. Disable Cisco Discovery Protocol to allow MPLS to share labels between the designated spokes
- B. Disable Cisco Discovery Protocol to allow for neighbor discovery
- C. Disable spanning tree to allow loops to occur within the hub-and-spoke topology.
- D. Disable split horizon to allow multiple VCs per spoke
Answer: D
NEW QUESTION 46
Refer to the exhibit.
Which statement about this output is true?
- A. The adjacent router is the egress LSR and has mpls ldp explicit-null configured.
- B. The adjacent LSR router configured mpls label range 0.
- C. The router IP 192.168.1.2 sent an implicit null, and the output is from the penultimate LSR.
- D. The zero in the second column is the normal behavior of an egress router LSR.
Answer: A
NEW QUESTION 47
Which two BGP attributes prevent loops in a route reflector environment? (Choose two.)
- A. AS_PATH
- B. originator ID
- C. cluster ID
- D. origin
- E. local preference
Answer: B,C
Explanation:
Section: VPN Architecture
Explanation/Reference: https://www.ciscopress.com/articles/article.asp?p=2756480&seqNum=10
NEW QUESTION 48
You try to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured, but you receive an error.
Which action must you take to correct the problem?
- A. Configure static routes for the VRF.
- B. Change the source IP address.
- C. Add the IP address to the VRF table.
- D. Remove the VRF from the interface.
Answer: D
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.html
NEW QUESTION 49
Refer to the exhibit.
While provisioning a new BGP session between the PE and CE router, you issue the as- override command.
Which statement describes modification of the prefix before being sent to the CE router (10.10.10.1)?
- A. The first and fourth autonomous systems change.
- B. The fourth AS changes, but no other autonomous systems change.
- C. The second and third autonomous systems change.
- D. The first AS changes, but no other autonomous systems change.
Answer: D
NEW QUESTION 50
Refer to the exhibit.
A customer carrier running MPLS VPN wants to utilize a backbone carrier to forward traffic and exchange VPNv4 prefixes between the two customer carriers networks depicted. Which two sets of routers must establish MP-iBGP sessions? (Choose two.)
- A. BB-PE-A and CC-PE-B
- B. CC-PE-A and CC-PE-B
- C. BB-PE-A and BB-P-A
- D. CC-PE-A and BB-PE-A
- E. BB-PE-A and BB-PE-B
- F. CC-PE-A and CC-P-A
Answer: B,E
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ias_and_csc/configuration/12-2sx/mp-ias- and-csc-12-2sx-book/mp-carrier-bgp.html
NEW QUESTION 51
Refer to the exhibit.
Which statement describes the result of this configuration?
- A. R1 redistributes BGP routes into the OSPF process of VRF custabc as OIA routes.
- B. R1 mutually redistributes routes between BGP 65001 and the OSPF process of VRF custabc.
- C. R1 redistributes BGP routes into the OSPF process of VRF custabc as E2 routes.
- D. R1 redistributes BGP routes into the OSPF process of VRF custabc as E1 routes.
Answer: D
NEW QUESTION 52
Drag and drop the EVPN components from the left onto the correct planes on the right.
Answer:
Explanation:
Reference:
https://www.cisco.com/c/dam/m/en_us/network-intelligence/service-provider/digital-transformation/ knowledge-network-webinars/pdfs/0420-epn-ckn.pdf slide 8
NEW QUESTION 53
Refer to the exhibit.
Which statement describes the result of this configuration?
- A. R1 redistributes BGP routes into the OSPF process of VRF custabc as OIA routes.
- B. R1 mutually redistributes routes between BGP 65001 and the OSPF process of VRF custabc.
- C. R1 redistributes BGP routes into the OSPF process of VRF custabc as E2 routes.
- D. R1 redistributes BGP routes into the OSPF process of VRF custabc as E1 routes.
Answer: D
NEW QUESTION 54
Refer to the exhibit.
An engineer is implementing an MPLS P2MP TE solution. Which type of router can serve as the midpoint router and the tailend router in this P2MP TE network implementation?
- A. source
- B. headend
- C. transit
- D. bud
Answer: D
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/mpls/mp-te-path-setup- xe-3s-asr920-book/mp-te-path-setup-xe-3s-asr920-book_chapter_01.html
NEW QUESTION 55
Refer to the exhibit.
Refer to the exhibit Router 1 is a P router in the ISP MPLS core A connected P router cannot generate an MPLS label for the router 1 loopback0 interface Which action resolves this issue?
- A. The network statement under the routing process must have a wildcard mask of 0 0.0 255.
- B. A static route to null 0 must be added for the loopback interface and then static routes must be redistributed into OSPF
- C. The OSPF network type must be changed on loopback0 to point-to-point
- D. The loopback0 interface must be in OSPF area 0.
Answer: A
NEW QUESTION 56
An engineer needs to improve MPLS network management by implementing a set of tools to support the NOC engineers in troubleshooting network failures. Which feature should the engineer implement to check the connectivity of the MPLS LSP between the ingress and egress PE routers?
- A. extended ping
- B. MPLS OAM
- C. LDP autodiscovery
- D. MPLS-TP
Answer: B
Explanation:
Reference:
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
NEW QUESTION 57
Refer to the exhibit.
An organization is running H-VPLS on a network comprising four routers in a hub-and-spoke topology with R1 as the hub An engineer added a new spoke with multiple VCs to the network, and now traffic cannot flow properly How should the engineer update the configuration on R1 to correct the problem?
- A. Disable Cisco Discovery Protocol to allow MPLS to share labels between the designated spokes
- B. Disable Cisco Discovery Protocol to allow for neighbor discovery
- C. Disable spanning tree to allow loops to occur within the hub-and-spoke topology.
- D. Disable split horizon to allow multiple VCs per spoke
Answer: D
NEW QUESTION 58
You are troubleshooting ARP connectivity issues for an Ethernet interface on an IOS XR network that runs IS-IS. You verify that the IGP protocol is running, but an ARP entry has not yet been created.
Which action should you take?
- A. ping the connected neighbor
- B. debug ping packets
- C. debug ARP
- D. verify the RIB table routes
Answer: A
Explanation:
Section: VPN Architecture
NEW QUESTION 59
Which statement describes the no bgp default route-target filter command?
- A. Prefixes that are received with route targets and distinguisher are not accepted.
- B. Prefixes that are received with route targets and distinguisher are accepted.
- C. Prefixes that are received with route targets that are not imported at the PE are accepted.
- D. Prefixes that are received with route targets that are not imported at the PE are not accepted.
Answer: C
NEW QUESTION 60
Refer to the exhibit.
Drag and drop the EVC configuration items from the left onto the correct descriptions on the right.
Answer:
Explanation:
Explanation
NEW QUESTION 61
Refer to the exhibit.
While provisioning a new BGP session between the PE and CE router, you issue the as- override command.
Which statement describes modification of the prefix before being sent to the CE router (10.10.10.1)?
- A. The first and fourth autonomous systems change.
- B. The fourth AS changes, but no other autonomous systems change.
- C. The second and third autonomous systems change.
- D. The first AS changes, but no other autonomous systems change.
Answer: D
NEW QUESTION 62
Refer to the exhibit.
Which statement about this output is true?
- A. The adjacent router is the egress LSR and has mpls ldp explicit-null configured.
- B. The adjacent LSR router configured mpls label range 0.
- C. The router IP 192.168.1.2 sent an implicit null, and the output is from the penultimate LSR.
- D. The zero in the second column is the normal behavior of an egress router LSR.
Answer: A
NEW QUESTION 63 
Refer to the exhibit. PE1 and PE2 are exchanging VPNv4 routes for CE1 and CE2, and PE3 contains the default route to the internet. If the three devices are operating normally, which two conclusions describe this configuration? (Choose two.)
- A. Only the CE2 VRF can access the default route provided by the Internet VRF.
- B. All three routers must be running a distance-vector routing protocol.
- C. The CE1 and CE2 VRFs can access the default route provided by the Internet VRF.
- D. The CE1 and CE2 VRFs can exchange routes only between their respective VRFs on PE1 and PE2.
- E. All three routers must be running MP-BGP.
Answer: D,E
Explanation:
Section: Layer 3 VPNs
NEW QUESTION 64
Refer to the exhibit.
Router 1 is a route reflector client within a service provider core PE1 cannot see VPNv4 routes received from the ASBR PE1 only has an iBGP relationship with Router 1. Which action resolves this issue?
- A. Activate PE1 as a neighbor under the IPv4 address family.
- B. Configure Router 1 as a route reflector for PE1 under the VPNv4 address family.
- C. Enable BGP default ipv4-unicast
- D. Configure PE1 to have an eBGP relationship with Router 1.
Answer: B
NEW QUESTION 65
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