SPEDGE question of the day

[PlAwAnSaI]

When troubleshooting EoMPLS configuration problems, which three parameters must match between the two ends of the pseudowire configurations?

A. pseudowire ID

B. EFP subinterface number

C. control word usage

D. Xconnect group name

E. MTU size

 

[PlAwAnSaI]

Which Layer 2 protocol parameters can be carried inside the control word when implementing AToM service?

A. encapsulation type

B. VC type

C. PW ID

D. Frame Relay FECN, BECN, and DE bits

 

[PlAwAnSaI]

When implementing VPLS on Cisco routers, which data structure resembles a virtual switch and is used for learning the MAC addresses?

A. SVI

B. VRF

C. VFI

D. BVI

 

[PlAwAnSaI]

In hierarchical VPLS implementations, which two access architectures can be used between the UPE and NPE?

A. 802.1ad

B. MP-BGP

C. EoMPLS

D. Frame Relay

 

[PlAwAnSaI]

Which two methods can be used for VPLS PW signaling?

A. LDP

B. BGP

C. RSVP

D. IGP

E. Static

 

[PlAwAnSaI]

When implementing non-hierarchical VPLS with eight PE routers, how many total PWs will be required between the PE routers?

A. 16

B. 28

C. 32

D. 8

E. 64

 

[PlAwAnSaI]

VPWS/EoMPLS offers which type of Ethernet services as defined by the MEF?

A. E-LAN

B. E-Interworking

C. E-Tree

D. E-Line

 

[PlAwAnSaI]

When using the Cisco EVC software infrastructure, a double-tagged frame with a customer VLAN of 10 and a service provider VLAN of 150 will be best matched by which encapsulation configuration?

A. encapsulation dot1q 10 second-dot1q 150

B. encapsulation dot1q 150

C. encapsulation dot1q 10 second-dot1q any

D. encapsulation dot1q 10 second-dot1q 50-200

E. encapsulation dot1q 10

 

[PlAwAnSaI]

When implementing H-VPLS with QinQ access on Cisco Metro Ethernet switches, which two commands enable the QinQ tagging?

A. switchport mode trunk

B. switchport access vlan {sp-vlan}

C. switchport access vlan {customer-vlan}

D. encapsulation dot1q {customer-vlan} second-tag {sp-vlan}

E. switchport mode dot1q-tunnel

F. encapsulation dot1q {sp-vlan} second-tag {customer-vlan}

 

[PlAwAnSaI]

Implementing H-VPLS instead of VPLS reduces which requirement?

A. having to implement QinQ tagging between the UPE and the NPE

B. having a full mesh of PWs between all the UPE routers

C. having a full mesh of PWs between all the PE routers in the service provider MPLS core

D. having to implement MPLS LDP between the UPE and the NPE

E. the overhead of using BGP or LDP autodiscovery

 

[PlAwAnSaI]

When implementing VPLS on Cisco IOS XR routers, the customer-facing subinterfaces on the PE routers are assigned to which Cisco EVC component?

A. bridge group

B. bridge domain

C. BVI

D. Layer 2 transport

E. VFI

 

[PlAwAnSaI]

What is an advantage of using the Cisco EVC infrastructure to implement carrier-class Ethernet services that are not available on non-EVC-capable platforms?

A. interworking support

B. local cross-connect support

C. PW stitching support

D. PW redundancy

E. flexible frame-matching support and VLAN tag manipulation

 

[PlAwAnSaI]

When implementing a Layer 2 transport subinterface on a Cisco IOS XR router, which encapsulation option is used to match any packets that are not matched by any other service instances?

A. tag

B. untagged

C. default

D. any

 

[PlAwAnSaI]

When configuring VPLS on the Cisco ASR 9000, which three configurations are required under the l2vpn configuration mode?

A. bridge-group

B. xconnect

C. vfi

D. encapsulation

E. bridge-domain

 

[PlAwAnSaI]

Which option is the correct command to define an interface as Layer 2 on the Cisco ASR 9000?

A. RP/0/RSP0/CPU0:R1(config)#int gigabitEthernet 0/6/0/0 switchport

B. RP/0/RSP0/CPU0:R1(config)#int gigabitEthernet 0/6/0/0 l2transport

C. RP/0/RSP0/CPU0:R1(config)#int gigabitEthernet 0/6/0/0 xconnect

D. RP/0/RSP0/CPU0:R1(config)#int gigabitEthernet 0/6/0/0 layer2

 

[PlAwAnSaI]

When implementing MPLS Layer 3 VPN services, which CE-PE routing method does not require the use of the redistribute command to enable the customer routes to be advertised through the MPLS cloud between the customer sites?

A. BGP

B. IS-IS

C. OSPF

D. static routing

E. EIGRP

F. OSPF or IS-IS

 

[PlAwAnSaI]

In MPLS Layer 3 VPN implementations, what is used at the PEs to transform the customer IPv4 prefixes into a unique 96-bit prefix?

A. RT

B. PW ID

C. AS number

D. RD

E. VC ID

 

[PlAwAnSaI]

With Layer 3 MPLS VPN implementations on Cisco IOS XR PE routers, an interface is assigned to a VRF using the vrf command in which configuration mode?

A. RP/0/RP0/CPU0E(config-bgp-af)#

B. RP/0/RP0/CPU0E(config-vrf)#

C. RP/0/RP0/CPU0E(config-if)#

D. RP/0/RP0/CPU0E(config-bgp)#

 

[PlAwAnSaI]

Refer to the partial Cisco IOS XR PE router configuration exhibit for supporting a Layer 3 MPLS VPN customer using EIGRP AS 20 as the CE-to-PE routing protocol.

router eigrp 10
vrf Customer_A
address-family ipv4
default-metric 10000 100 255 1 1500
autonomous-system 20
redistribute bgp 64500
interface GigabitEthernet0/0/0/0
!
router bgp 64500
vrf Customer_A
rd 64500:1
address-family ipv4 unicast
redistribute eigrp 10

The MPLS VPN customer is having problems receiving the EIGRP routes on the different customer site CE routers. What is wrong with this configuration that is causing the problem?

A. The router eigrp command is referencing the wrong AS number.

B. The redistribute eigrp command is missing the metric transparent option.

C. The redistribute eigrp command is referencing the wrong AS number.

D. The redistribute bgp command is missing the subnets option.

E. The redistribute eigrp command is missing the subnets option.

 

[PlAwAnSaI]

In which Cisco IOS XR configuration mode is the redistribute static command applied to enable the redistribution of static VRF routes between the PE routers?

A. RP/0/RP0/CPU0E(config-bgp-vrf-af)#

B. RP/0/RP0/CPU0E(config-bgp-vrf)#

C. RP/0/RP0/CPU0E(config-bgp)#

D. RP/0/RP0/CPU0E(config-router)#