Cisco 350-501 Exam Dumps

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

Cisco 350-501 Sample Questions

Question # 1

FRR is configured on a network. What occurs when the headend router on the path is alerted to a link failure over IGP?

A. LSP attempts fast switching on the backup path until the primary path returns to the active state.   
B. The headend router uses a presignaled LSP to bypass the failure point.   
C. A new backup tunnel is established past the PLR to pass through the protected nodes   
D. Backup tunnel is established and intersects with the primary tunnel at the headend.   

Answer: A

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Question # 2

The service provider is serving hosts with two different multicast streams from source X and source Y. SourceX is multicast group 224.0.0.0/8, and source Y is multicast group 226.0.0.0/8. Multicast source X should sendits stream through bidirectional RP address 10.20.1.1, and multicast source Y should send its stream through RP address 10.20.2.1. Which configuration meets these requirements?

A. Enable ip pim ssm default on RA and RB.   
B. Add ip pim bidir-enable in global mode on RB.   
C. Permit the source X and source Y IP addresses in the access list on RB.   
D. Set PIM sparse mode with a static RP address of 10.20.2.1 on RA and RC.   

Answer: B

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Question # 3

What Is one of the differences between Ansible and Chef? 

A. Ansible uses YAML and Chef uses Ruby.   
B. Chef requires the use of Windows in the environment and Ansible requires Linux.   
C. Chef is highly scalable and Ansible is highly secure.   
D. Ansible uses Ruby and Chef uses Python.   

Answer: A

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Question # 4

An engineer is moving all of an organization’s Cisco IOS XE BGP routers to the address-family identifier format. Which command should be used to perform this upgrade quickly with the minimum service disruption?

A. vrf upgrade-cli   
B. bgp upgrade-cli   
C. address-family ipv4   
D. ip bgp-community new-format   

Answer: B

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Question # 5

Which condition must be met for TI-LFA to protect LDP traffic? 

A. For single-segment protection, the PQ node must be LDP and SR-capable.   
B. The protected destination must have an associated LDP label and prefix-SID.   
C. The point of local repair must be LDP-capable.   
D. For double-segment protection, the P and Q nodes must be SR-capable.   

Answer: D

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Question # 6

What is a characteristic of data modeling language?

A. It provides an interface for state data
B. It separates configuration and state data.
C. It ensures devices are individually configured.
D. It replaces SNMP.

Answer: B

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Question # 7

What are two features of stateful NAT64? (Choose two.)

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

Answer: A,B

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Question # 8

Which technology enables the addition of new wavelengths in a fiber-optic network? 

A. IPoDWDM  
B. CWDM  
C.DWDM  
D. ROADM  

Answer: C

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

Answer: D

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Question # 10

A network engineer is implementing NetFlow to observe traffic patterns on the network. The engineer is planning to review the patterns to help plan future strategies for monitoring and preventing congestion as the network grows. If the captures must include BGP next-hop flows, which configuration must the engineer apply to the router?

A. ip cefip flow-export version 5 bgp-nexthopip flow-export destination 192.168.1.1 9995interface gigabitethernet 1/0/1ip flow egress
B. ip cefip flow-export version 9 bgp-nexthopip flow-export destination 192.168.1.1 9996interface gigabitethernet 1/0/1ip flow ingress
C. ip cefip flow-export version 5ip flow-export destination 192.168.1.1 9995interface gigabitethernet 1/0/1ip flow ingresscdp enable
D. no ip cefip flow-export version 9ip flow-export destination 192.168.1.1 9996interface gigabitethernet 1/0/1ip flow ingressip flow egress

Answer: B

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Question # 11

What is a characteristic of MVPN?

A. It bypasses the use of MPLS in the service provider core and transmits packets using IP only.   
B. It uses pseudowires to route unicast and broadcast traffic over either a service provider MPLS or IP core.   
C. It allows VRF traffic to use the service provider MPLS VPN to route multicast traffic.   
D. It creates GRE tunnels to route multicast traffic over a service provider IP core.   

Answer: C

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Question # 12

A company is expanding its existing office space to a new floor of the building, and the networking team is installing a new set of switches. The new switches are running IGMPv2, and the engineers configured them for VLAN10 only. The rest of the existing network includes numerous Layer 2 switches in multiple other VLANs, all running IGMPv3. Which additional task must the team perform when deploying the new switches so that traffic is switched correctly through the entire network? 

A. Configure the new switches to use IGMPv3 on all VLANs on the network.   
B. Configure all switches on the network to support IGMPv2 and IGMPv3 on all VLANs on the network.  
C. Configure the new switches to use IGMPv3 on VLAN10 only.   
D. Configure all switches on the network to support IGMPv2 and IGMPv3 on VLAN10 only.   

Answer: C

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Question # 13

How does Cisco DNA Center enhance network automation?

A. It allows network administrators to quickly deploy Cisco Layer 2 devices without requiring STP and  broadcast transport.
B. It allows network administrators to reduce inconsistencies when they deploy and validate network configurations.  
C. It allows network administrators to reduce the number of VRFs in a multi customer environment by automatically implementing a single VLAN per customer.  
D. It allows network administrators to combine voice and data networks into a single topology without manual configuration.   

Answer: B

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Question # 14

A new PE router is configured to run OSPF as an IGP with LDP on all interfaces. The engineer is trying toprevent black holes after convergence when the PERSON device loses an LDP session with other PE routers.Which action must the engineer take to implement LDP session protection on a new PE router?

A. Configure the mpls ldp session protection and mpls label protocol ldp commands on the interfaces onthe new PE router that connect to the CENTER routers.
B. Configure the mpls ldp discovery targeted-hello accept and mpls ldp session protection commands onthe interfaces on the new PE router that connect to the CE routers.  
C. Configure the mpls ldp discovery targeted-hello accept and mpls ldp session protection commands onthe interfaces on the new PE router that connect to the CE routers.  
D. Configure the new PE router with the mpls ldp session protection command on interfaces with directlyconnected neighbors.

Answer: C

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Question # 15

How does Inter-AS Option-A function when two PE routers in different autonomous systems are directly connected?

A. The two routers share all Inter-AS VPNv4 routes and redistribute routes within an IBGP session to provide end-to-end reach.  
B. The two routers establish an MP-EBGP session to share their customers' respective VPNv4 routes.   
C. The two routers treat one another as CE routers and advertise unlabeled IPv4 routes through an EBGP session.  
D. The two routers share VPNv4 routes over a multihop EBGP session and set up an Inter-AS tunnel using one another's label.  

Answer: C

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Question # 16

An engineering team must implement Unified MPLS to scale an MPLS network. Devices in the core layer use different IGPs, so the team decided to split the network into different areas. The team plans to keep the MPLS services as they are and introduce greater scalability. Which additional action must the engineers take to implement the Unified MPLS?

A. Redistribute the IGP prefixes from one IGP into the other routers to ensure end-to-end LSPs.   
B. Configure the ABR routers as route reflectors that redistribute IGP into BGP.   
C. Redistribute the IGP prefixes into another IGP to ensure end-to-end LSPs.   
D. Move the IGP prefixes into IS-IS as the loopback prefixes of the PE routers to distribute the prefixes to other routers to create end-to-end LSPs.   

Answer: C

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Question # 17

How does SR policy operate in Segment Routing Traffic Engineering? 

A. An SR policy for color and endpoint is deactivated at the headend as soon as the headend learns a valid candidate path for the policy.   
B. When "invalidation drop" behavior occurs, the SR policy forwarding entry is removed and the router drops all traffic that is steered into the SR policy.  
C. When a set of SID lists is associated with the SR policy designated path, traffic steering is ECMP-based according to the qualified cost of each SID-list.  
D. An active SR policy installs a BSID-keyed entry in the forwarding table to steer the packets that match the entry to the SR policy SID-list.  

Answer: D

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Question # 18

What is a characteristic of the YANG model? 

A. Associate types are optional for each leaf.   
B. It uses containers to categorize related nodes.   
C. It is a distributed model of nodes.   
D. Spines are used to represent individual attributes of nodes.   

Answer: B

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Question # 19

What is the function of Cisco NFV infrastructure platform? 

A. It does not have a security audit feature.   
B. It does not offer high availability.    
C. It offers consistent performance.   
D. It offers decentralized logging.   

Answer: C

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Question # 20

A customer has requested that the service provider use a Cisco MPLS TE tunnel to force the E-line service to take a specific route What is used to send the traffic over the tunnel? 

A. static route   
B. preferred path   
C. forwarding adjacency   
D. autoroute destination   

Answer: B

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Question # 21

Which statement about TLS is accurate when using RESTCONF to write configurations on network devices'? 

A. It requires certificates for authentication.   
B. It is provided using NGINX acting as a proxy web server   
C. It is used for HTTP and HTTPS requests.   
D. It is not supported on Cisco devices   

Answer: A

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Question # 22

What is the role of NFVI? 

A. domain name service
B. intrusion detection
C. monitor
D. network address translation

Answer: C

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Question # 23

How does Cisco MPLS TE use OSPF extensions to allow for optimized transit between a headend router and a destination router? 

A. Router LSAs share router link advertisements to each router within the MPLS environment so that tunnels can be built bidirectionally.  
B. ASBR Summary LSAs share OSPF domain information so that the two routers know how to reach each other during tunnel setup.   
C. Network LSAs share RSVP information to build the tunnel between the two routers.   
D. Opaque LSAs calculate and establish unidirectional tunnels that are set according to the network constraint.  

Answer: D

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