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Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) Questions and Answers

Question 81

A regional MPLS VPN provider operates m two regions and wants to provide MPLS L 3VPN service for a customer with two sites in these separate locations. The VPN provider approaches another organization to provide backbone carrier services so that the provider can connect to these two locations.

Which statement about this scenario is true?

Options:

When edge routers at different regional sites are connected over the global carrier backbone, MP-eBGP must run between the routers to exchange the customer VPNv4 routes

When eBGP is used for label exchange using the send label option, MPLS-BGP forwarding is configured under the global ABC CSC PE-to CE interface

When IGP is used for route exchange and LDP for label exchange, MPLS is enabled only on the VRF interface on the backbone-earner PE side.

When BGP is used for both route and label exchange, the neighbor a.b.c.d send-lable command is used under the address family VPNv4 command mode.

Question 82

Which OoS model allows hosts to report their QoS needs to the network?

Options:

DiffServ

CB-WFQ

IntServ

MQC

Question 83

Refer to the exhibit A user is performing QoS marking on internet traffic and sending it with IPv4 and IPv6 headers on the provider edge device PE1. IPv4 traffic is classified with DSCP 4 and IPv6 traffic is classified with DSCP 6. Which action must the engineer take to begin implementing a QoS configuration on PE1 for the IPv6 traffic?

Options:

Create an access list that includes any IPv6 traffic and apply it to CM-20.

Create access list IPv6-match and configure match ip dscp 4 and match ip dscp 6 in class maps CM-10 and CM-20.

Configure match ip dscp 4 in class map CM-10 and match ip dscp 6 in class map CM-20.

Create access list IPv6-filter and remove DSCP value 4 and 6 in class maps CM-10 and CM-20.

Question 84

Refer to the exhibit. The operations team is implementing an LDP-based configuration in the service provider core network with these requirements:

R1 must establish LDP peering with the loopback IP address as its Router-ID.

Session protection must be enabled on R2.

How must the team update the network configuration to successfully enable LDP peering between R1 and R2?

Options:

Change the LDP password on R2 to Cisco.

Configure mpls ldp router-id loopback0 on R1 and R2.

Configure LDP session protection on R1.

Change the discover hello hold time and interval to their default values.

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Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) Questions and Answers

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