Cisco Implementing and Operating Cisco Service Provider Network Core Technologies

QUESTION NO: 1
Refer to the exhibit. This configuration is being applied on an IOS XR router.
Which statement about this configuration is true?

A. It is used to create a streaming subscription with a 60-second interval B. It is used to set up configuration to poll network data C. It is used to create a streaming subscription with a 600-second interval D. It is used to enable gRPC

Correct Answer: A

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QUESTION NO: 2
Refer to the exhibit. The networking team recently identified a folder of archived scripts in an internal repository. A junior engineer must determine whether any of the scripts are useful in the current network environment. What is the primary purpose of this script?

A. using a function loop to configure a group of network devices B. provisioning a new device with a hostname and device ID C. storing a token to the local device repository D. collecting information about network devices

Correct Answer: D

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QUESTION NO: 3
Drag and Drop Question
Drag and drop each NAT64 description from the left onto the correct NAT64 type on the right.

Correct Answer:

Explanation:
https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/enterprise-ipv6- solution/white_paper_c11-676277.html

QUESTION NO: 4
Which service is a VNF role?

A. Network B. Storage C. Compute D. Firewall

Correct Answer: D

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QUESTION NO: 5
Refer to the exhibit. While troubleshooting the OSPF adjacency between routers R1 and R2 an engineer noticed that both routers are stuck in the EXCHANGE/EXSTART state.
What should the engineer fix to solve the ongoing issue?

A. match MTU values B. match OSPF areas C. match OSPF network types D. match IPv4 addresses

Correct Answer: A

QUESTION NO: 6
Refer to the exhibit. An engineer wants to authenticate the OSPF neighbor between PEA and PE- B using MD5.
Which command on PE-B successfully completes the configuration?

PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611

A. PE-B(config-if)#ip ospf authentication null
PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611 B. PE-B(config-if)#ip ospf authentication message-digest C. PE-B(config-if)#ip ospf authentication null
PE-B(config-if)#ip ospf message-digest-key 1 md5 44578611 D. PE-B(config-if)#ip ospf authentication key-chain 44578611
PE-B(config-if)#ip ospf message-digest-key 1 md5 44568611

Correct Answer: B

QUESTION NO: 7
Refer to the exhibit. An engineer working for a private telecommunication company with an employee ID 4402:98:032 upgrades the WAN link between routers ASBR-101 and ASBR-201 to
1Gb by installing a new physical connection between the Gi3 interfaces. Which BGP attribute must the engineer configure on ASBR-201 so that the existing WAN link on Gi2 is maintained as a backup?

A.

B.

C.

D.

Correct Answer: C

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QUESTION NO: 8
Drag and Drop Question
Refer to the exhibit. An engineer wants to determine which paths are best, second best, third best, and fourth best. Drag and drop the peer addresses on the left to the corresponding BGP best-path selection order on the right.

Correct Answer:

QUESTION NO: 9
While an engineer deploys a new Cisco device to redistribute routes from OSPF to BGP, they notice that not all OSPF routes are getting advertised into BGP.
Which action must the engineer perform so that the device allows O, OIA, OE1, and OE2 OSPF routes into other protocols?

A. Configure the synchronization keyword in the global BGP configuration. B. Configure the keywords internal and external in the redistribution entry. C. Configure the device to pass only O and E2 routes through it. D. Configure the keyword nssa in the redistribution entry.

Correct Answer: B

QUESTION NO: 10
What are two features of stateful NAT64? (Choose two.)

A. It uses address overloading. B. It requires the IPv6 hosts to use either DHCPv6-based address assignments or manual address assignments. C. It provides 1:N translations, so it supports an unlimited number of endpoints. D. It provides 1:1 translation, so it supports a limited number of endpoints. E. It requires IPv4-translatable IPv6 address assignments.

Correct Answer: A,C

QUESTION NO: 11
Refer to the exhibit. R1 has two upstream Tier 1 service providers. BGP is in use as the exterior routing protocol, and ISP_A and ISP_B are sending the full BGP table. A network engineer must assign local-preference 70 to all routes with multiple exit discriminator 30. Which configuration must the network engineer apply?

A.

B.

C.

D.

Correct Answer: D

QUESTION NO: 12
How does TI-LFA reduce packet loss in segment routing?

A. It enables path selection in SR-TE to support MPLS label allocation. B. It establishes multiple labels per path using more than one IGP. C. It determines which link to use when load balancing to prevent packet fragmentation loss. D. It calculates loop-free backup paths that are rapidly implemented in case of a link failure.

Correct Answer: D

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QUESTION NO: 13
Refer to the exhibit. After a networking team configured this MPLS topology, the supervisor wants to view MPLS labels to verify the path that packets take from router R1 to router R7. The team already issued an ICMP ping to verify connectivity between the devices. Which task must the team perform to allow the supervisor to view the label switch path?

A. Implement MPLS LDP to assign labels to all the routes in the transit path. B. Configure MPLS LDP Sync to sync labels from the routing table to the MPLS forwarding table. C. Configure MPLS TE to display the labels in the stack between the head and tail-end routers D. Implement MPLS OAM to display the labels for each hop along the path

Correct Answer: D

Cisco Implementing and Operating Cisco Service Provider Network Core Technologies - 350-501 Exam Questions