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350-501 Exam Dumps - Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR)

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Question # 73

Refer to the exhibit.

R101 is peering with R102 and R103, and R201 is peering with R202 and R203 using iBGP Labeled Unicast address families. The OSPF area 0 border routers are in a full iBGP Labeled Unicast mesh, and VPNv4 routes are exchanged directly between PE routers R101 and R201 through iBGP Which address family-level configuration must be applied on ABR R102 on ABR R102 to support a Unified MPLS routing architecture with partitioned IGP domains?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 74

How does an untrusted interface at the boundary of an administrative domain handle incoming packets?

A.

It remarks all values to a CoS of 0.

B.

It forwards only traffic with a DSCP value of 48.

C.

It translates the IP precedence value to the corresponding DSCP value.

D.

It drops all traffic ingressing the network.

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Question # 75

Refer to the exhibit.

A network administrator implemented MPLS LDP changes on PE-A LSR device. The engineer must ensure there are no LDP peer are fully operational. Which LDP feature must the engineer apply to the existing configuration to eliminate the problem?

A.

Configure MPLS LDP IGP synchronization on the network.

B.

Configure MPLS LDP NSR for all LDP sessions.

C.

Enable LDP session protection under the routing protocol.

D.

Disable IP CEF on routers running LDP and enable LDP.

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Question # 76

What do Ansible and Salt Stack have in common?

A.

They both use DSL configuration language

B.

They both use YAML configuration language

C.

They both have agents running on the client machine

D.

They both can be designed with more than one master server

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Question # 77

Refer to the exhibit. A network engineer is configuring router RB to secure BGP advertisements against route hijacking activity. RB must validate all prefixes that it receives from origin AS 200 before installing them in the BGP route table. Which configuration meets the requirement?

A.

RB(config)# router bgp 100

RB(config-router)# address-family ipv4 unicast

RB(config-router-af)# bgp bestpath origin-as use validity

B.

RB(config-bgp)# router bgp 100

RB(config-bgp)# bgp origin-as validation signal ibgp

RB(config-bgp)# bgp bestpath origin-as allow invalid

C.

RB(config-bgp)# router bgp 100

RB(config-bgp)# bgp origin-as validation time off

D.

RB(config)# router bgp 100

RB(config-router)# address-family ipv4 unicast

PB(config-router-af)# bgp origin-as validation enable

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Question # 78

Refer to the exhibit. Tier 2 ISP A on AS 653 is connected to two Tier 1 ISPs on AS 321 and AS 51 respectively. The network architect at ISP A is planning traffic flow inside the network to provide predictable network services. Cisco Express Forwarding is disabled on the edge router. How should the architect implement BGP to direct all traffic via the Tier 1 ISP with next-hop 7.4.5.2?

A.

Implement the BGP routing protocol and run the bgp deterministic-med command.

B.

Implement MP-BGP with a 4-byte AS number with the bgp best path compare-routerid command.

C.

Implement the BGP routing protocol and the maximum-paths 2 configuration.

D.

Implement BGP route-reflector functionality with the bgp always-compare-med configuration.

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Question # 79

Refer to the exhibit. A global company plans to implement BGP at its newest location to provide connectivity to other offices. The global infrastructure of the company is a multivendor environment. An engineer must review the BGP core configurations at headquarters to determine if they can be repurposed at the new location. The engineer copied this JSON script for review. What is the effect of the script?

A.

It configures BGP with neighbor 192.168.1.2 residing in AS 65514.

B.

It sets the BGP router-ID to 192.168.1.2 and sets the AS of the router to 65514.

C.

It configures BGP on the device and inserts 192.168.1.0/24 into the BGP table using the origin AS 65514.

D.

It configures a VRF named cisconode1 and a BGP instance using the VPNv4 address family.

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Question # 80

Refer to the exhibit.

The network engineer who manages ASN 65001 must configure a BGP routing policy on GW-XR1 with these requirements:

• Advertise locally-originated routes and /24 prefixes assigned within the 198.18.0.0/15 range. All other prefixes must be dropped.

• Reachability to 198.18.100.0/24 must be preferred via the EDGE-1 connection.

• Reachability to 198.19.100.0/24 must be preferred via the EDGE-2 connection.

Which configuration must the network engineer implement on GW-XR1?

A.

B.

C.

D.

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