Question 1

Which two frames can be configured on an Ethernet flow point? (Choose two.)

Accepted Answer

A)  of a specific VLAN 
B)  with different type of service values 
C)  with identical type of service value 
D)  with different class of service values 
E)  with no tags 
A)  of a specific VLAN 
B)  with different type of service values 
C)  with identical type of service value 
D)  with different class of service values 
E)  with no tags A,E

Question 2

An engineer is troubleshooting AToM on an IOS XE router and receives an error when creating the xconnect. Which command does he need to complete to create the xconnect in AToM?

Accepted Answer

A)  encapsulation mpls 
B)  encapsulation 12tpv3 
C)  protocol 12tpv3 
D)  protocol none 
A)  encapsulation mpls 
B)  encapsulation 12tpv3 
C)  protocol 12tpv3 
D)  protocol none A

Question 3

You are writing the requirements for an MPLS L3VPN environment that uses MP-BGP between PE routers. In this environment, route targets and route distinguishers need to be advertised between the PE routers. Which three operations meet these requirements? (Choose three.)

Accepted Answer

A)  mandatory creation of PE-to-PE BGP sessions between the outgoing interface IP addresses 
B)  advertisement of standard communities, enabled on the PE-to-PE BGP neighbors 
C)  creation of PE-to-PE BGP sessions between loopback IP addresses 
D)  full mesh of IBGP sessions 
E)  full mesh of EBGP sessions and partial mesh of IBGP sessions
F) advertisement of extended communities, enabled on the PE-to-PE BGP neighbors 
A)  mandatory creation of PE-to-PE BGP sessions between the outgoing interface IP addresses 
B)  advertisement of standard communities, enabled on the PE-to-PE BGP neighbors 
C)  creation of PE-to-PE BGP sessions between loopback IP addresses 
D)  full mesh of IBGP sessions 
E)  full mesh of EBGP sessions and partial mesh of IBGP sessions
F) advertisement of extended communities, enabled on the PE-to-PE BGP neighbors C,D,F

Question 4

Refer to the exhibit. A network engineer has been called to configure the four PE devices in order to enable full communication among the four CE devices connected to them. While starting to configure, he experienced a connectivity issue. Which two tasks should the engineer perform in order to begin the process correctly? (Choose two.)

Accepted Answer

A)  Configure PE3 to export route-targets 100:1 and 200:2. 
B)  Configure PE3 to import route-targets 100:1 and 200:2. 
C)  Configure PE4 to import route-targets 101:1 and 202:2. 
D)  Configure PE2 to export route-targets 300:3 and 400:4. 
E)  Configure PE1 to import route-targets 300:3 and 400:4. 
A)  Configure PE3 to export route-targets 100:1 and 200:2. 
B)  Configure PE3 to import route-targets 100:1 and 200:2. 
C)  Configure PE4 to import route-targets 101:1 and 202:2. 
D)  Configure PE2 to export route-targets 300:3 and 400:4. 
E)  Configure PE1 to import route-targets 300:3 and 400:4.

Question 5

What do EVPN single-active and all-active have in common?

Accepted Answer

A)  They are default gateway redundancy options. 
B)  They are multihoming mechanisms used for CE devices. 
C)  They are used to provide single connection from a CE device to a service provider. 
D)  They are both roles that a designated router can take when MPLS is used with EVPN. 
A)  They are default gateway redundancy options. 
B)  They are multihoming mechanisms used for CE devices. 
C)  They are used to provide single connection from a CE device to a service provider. 
D)  They are both roles that a designated router can take when MPLS is used with EVPN.

Question 6

Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

Accepted Answer

A)  route reflectors 
B)  route dampening 
C)  confederations 
D)  AS override 
A)  route reflectors 
B)  route dampening 
C)  confederations 
D)  AS override

Question 7

Refer to the exhibit. Which effect of this configuration is true?

Accepted Answer

A)  It configures VPWS multihomed. 
B)  It configures VPWS single homed. 
C)  It configures an IPv4 peering with 192.168.1.1 
D)  It configures MPLS traffic engineering. 
A)  It configures VPWS multihomed. 
B)  It configures VPWS single homed. 
C)  It configures an IPv4 peering with 192.168.1.1 
D)  It configures MPLS traffic engineering.

Question 8

Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs? (Choose two.)

Accepted Answer

A)  Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use L2TPv3 tunneling. 
B)  Layer 2 VPNs use AToM, but Layer 3 VPNs use MPLS/BGP. 
C)  Layer 2 VPNs use BGP, but Layer 3 VPNs use VPLS. 
D)  Layer 2 VPNs use L2TPv3 tunneling, but Layer 3 VPNs use GRE tunneling. 
E)  Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use pseudowires to provide tunneling. 
A)  Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use L2TPv3 tunneling. 
B)  Layer 2 VPNs use AToM, but Layer 3 VPNs use MPLS/BGP. 
C)  Layer 2 VPNs use BGP, but Layer 3 VPNs use VPLS. 
D)  Layer 2 VPNs use L2TPv3 tunneling, but Layer 3 VPNs use GRE tunneling. 
E)  Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use pseudowires to provide tunneling.

Question 9

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?

Accepted Answer

A)  headend 
B)  source 
C)  transit 
D)  bud 
A)  headend 
B)  source 
C)  transit 
D)  bud

Question 10

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 carrier networks depicted. Which two sets of routers must establish MP-iBGP sessions? (Choose two.)

Accepted Answer

A)  BB-PE-A and CC-PE-B 
B)  CC-PE-A and CC-PE-B 
C)  BB-PE-A and BB-PE-B 
D)  CC-PE-A and BB-PE-A 
E)  BB-PE-A and BB-P-A
F) CC-PE-A and CC-P-A 
A)  BB-PE-A and CC-PE-B 
B)  CC-PE-A and CC-PE-B 
C)  BB-PE-A and BB-PE-B 
D)  CC-PE-A and BB-PE-A 
E)  BB-PE-A and BB-P-A
F) CC-PE-A and CC-P-A

Question 11

Which two are characteristics of using a non-MPLS peer-to-peer model over a traditional overlay model? (Choose two.)

Accepted Answer

A)  The model is suited for nonredundant configurations. 
B)  The configuration on a newly added site PE is updated automatically. 
C)  Provider routers know the customer network topology. 
D)  The customer specifies the exact site-to-site traffic profile. 
E)  Routing information is exchanged between the customer router and one or a few PEs. 
A)  The model is suited for nonredundant configurations. 
B)  The configuration on a newly added site PE is updated automatically. 
C)  Provider routers know the customer network topology. 
D)  The customer specifies the exact site-to-site traffic profile. 
E)  Routing information is exchanged between the customer router and one or a few PEs.

Question 12

The network engineering group of a large ISP needs to harden the management plane of its Cisco 9000 Series ASRs. While addressing IPv6 ICMP issues, they realized they have to limit the rate at which IPv6 ICMP error messages are sent out on the network. Which command do they need to apply?

Accepted Answer

A)  icmp ipv6 rate-limit unreachable 1000 
B)  ipv6 rate-limit 1000 
C)  icmp ipv4 rate-limit unreachable 1000 
D)  ipv6 icmp error-interval 50 20 
A)  icmp ipv6 rate-limit unreachable 1000 
B)  ipv6 rate-limit 1000 
C)  icmp ipv4 rate-limit unreachable 1000 
D)  ipv6 icmp error-interval 50 20

Question 13

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)?

Accepted Answer

A)  The fourth AS changes, but no other autonomous systems change. 
B)  The first and fourth autonomous systems change. 
C)  The second and third autonomous systems change. 
D)  The first AS changes, but no other autonomous systems change. 
A)  The fourth AS changes, but no other autonomous systems change. 
B)  The first and fourth autonomous systems change. 
C)  The second and third autonomous systems change. 
D)  The first AS changes, but no other autonomous systems change.

Question 14

Refer to the exhibit. Which statement about this command is true?

Accepted Answer

A)  It must be configured on each PE router to enable the PE routers to receive multicast traffic for this particular MVRF. 
B)  It is used to set the designated router on a link using PIM-SM. 
C)  It must be configured on the PE and CE router to enable MP-BGP to send labels for CSC. 
D)  It is used to set the router that will server as the root bridge for STP. 
A)  It must be configured on each PE router to enable the PE routers to receive multicast traffic for this particular MVRF. 
B)  It is used to set the designated router on a link using PIM-SM. 
C)  It must be configured on the PE and CE router to enable MP-BGP to send labels for CSC. 
D)  It is used to set the router that will server as the root bridge for STP.

Question 15

An ISP provides a major client MPLS VPN for managed services. The MPLS engineering team needs to use the advanced VPN feature of selective VRF import so that only specific prefixes are present in the required VPNs. Which aspect of this feature must the team consider?

Accepted Answer

A)  A route must pass the import route map first and then the route target import filter. 
B)  The routers that are imported in the VRF can be BGP and IGP routes, so other match conditions in the route map, besides communities, can be used. 
C)  The import-map command is applied under the PE interface that connects to the CE router. The import-map command is applied under the PE interface that connects to the CE router. 
D)  A route is imported into the VRF only when at least one RT that is attached to the route matches one RT that is configured in the VRF and the route is permitted by the import route map. 
A)  A route must pass the import route map first and then the route target import filter. 
B)  The routers that are imported in the VRF can be BGP and IGP routes, so other match conditions in the route map, besides communities, can be used. 
C)  The import-map command is applied under the PE interface that connects to the CE router. The import-map command is applied under the PE interface that connects to the CE router. 
D)  A route is imported into the VRF only when at least one RT that is attached to the route matches one RT that is configured in the VRF and the route is permitted by the import route map.

Question 16

An engineer is investigating an MPLS LDP issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?

Accepted Answer

A)  show mpls forwarding-table 
B)  show mpls ldp neighbors 
C)  show mpls ldp labels 
D)  show mpls ldp bindings 
A)  show mpls forwarding-table 
B)  show mpls ldp neighbors 
C)  show mpls ldp labels 
D)  show mpls ldp bindings

Question 17

Which mechanism reduces the network flooding caused by host ARP learning behavior?

Accepted Answer

A)  ARP suppression 
B)  storm control 
C)  root guard 
D)  BPDU guard 
A)  ARP suppression 
B)  storm control 
C)  root guard 
D)  BPDU guard

Question 18

Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC. Which additional task can you perform to complete the configuration?

Accepted Answer

A)  Configure static routing on the CE router. 
B)  Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE. Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE. 
C)  Change the rd value to 65001:65001 under the VRF section of the PE router. Change the rd value to 65001:65001 under the VRF section of the PE router. 
D)  Configure OSPF on the PE router. 
A)  Configure static routing on the CE router. 
B)  Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE. Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE. 
C)  Change the rd value to 65001:65001 under the VRF section of the PE router. Change the rd value to 65001:65001 under the VRF section of the PE router. 
D)  Configure OSPF on the PE router.

Question 19

While troubleshooting EoMPLS configuration problems, which three parameters should an engineer match between the two ends of the pseudowire configurations? (Choose three.)

Accepted Answer

A)  VLAN name 
B)  Xconnect group name 
C)  EFP subinterface number 
D)  pseudowire ID 
E)  MTU size
F) control word usage 
A)  VLAN name 
B)  Xconnect group name 
C)  EFP subinterface number 
D)  pseudowire ID 
E)  MTU size
F) control word usage

Question 20

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?

Accepted Answer

A)  debug ping packets 
B)  debug ARP 
C)  ping the connected neighbor 
D)  verify the RIB table routes 
A)  debug ping packets 
B)  debug ARP 
C)  ping the connected neighbor 
D)  verify the RIB table routes

Exam 15: Implementing Cisco Service Provider VPN Services (SPVI)

Which two frames can be configured on an Ethernet flow point? (Choose two.)

An engineer is troubleshooting AToM on an IOS XE router and receives an error when creating the xconnect. Which command does he need to complete to create the xconnect in AToM?

You are writing the requirements for an MPLS L3VPN environment that uses MP-BGP between PE routers. In this environment, route targets and route distinguishers need to be advertised between the PE routers. Which three operations meet these requirements? (Choose three.)

What do EVPN single-active and all-active have in common?

Which BGP feature causes to replace the AS number of originating router with the AS number of the sending router?

Refer to the exhibit. Which effect of this configuration is true?

Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs? (Choose two.)

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?

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 carrier networks depicted. Which two sets of routers must establish MP-iBGP sessions? (Choose two.)

Which two are characteristics of using a non-MPLS peer-to-peer model over a traditional overlay model? (Choose two.)

The network engineering group of a large ISP needs to harden the management plane of its Cisco 9000 Series ASRs. While addressing IPv6 ICMP issues, they realized they have to limit the rate at which IPv6 ICMP error messages are sent out on the network. Which command do they need to apply?

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)?

Refer to the exhibit. Which statement about this command is true?

An ISP provides a major client MPLS VPN for managed services. The MPLS engineering team needs to use the advanced VPN feature of selective VRF import so that only specific prefixes are present in the required VPNs. Which aspect of this feature must the team consider?

An engineer is investigating an MPLS LDP issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?

Which mechanism reduces the network flooding caused by host ARP learning behavior?

Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC. Which additional task can you perform to complete the configuration?

While troubleshooting EoMPLS configuration problems, which three parameters should an engineer match between the two ends of the pseudowire configurations? (Choose three.)

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?

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