350-501 Exam Details
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Exam Code
:350-501 -
Exam Name
:Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) -
Certification
:CCIE Service Provider -
Vendor
:Cisco -
Total Questions
:568 Q&As -
Last Updated
:May 31, 2026
Cisco 350-501 Online Questions & Answers
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Question 291:
Refer to the exhibit.
R1#configure terminal R1(config)# mpls ip R1(config)# mpls label protocol ldp
R1(config)# interface Ethernet1/0 R1(Config-if)# ip address 10.1.1.1 255.255.255.255 R1(config-if)# mpls ip
R1(config)# router ospf 1 R1(config-router)# network 10.0.0.0 0.255.255.255 area 3
A network engineer is configuring MPLS LDP synchronization on router R1. Which additional configuration must an engineer apply to R1 so that it will synchronize to OSPF process 1?
A. R1(config)# router ospf 1R1(config-router)# mpls ldp sync
B. R1(config)# router ospf 1R1(config-router)# mpls ldp autoconfig
C. R1(config)# router ospf 1R1(config-router)# mpls ldp igp sync holddown 60
D. R1(config)# router ospf 1R1(config-router)# no mpls ldp igp sync/strongR1(config-router)# bfd all-interface -
Question 292:
Refer to the exhibit.
R1#show running-config
--
interface GigabitEthernet0/0 ip address 192.168.1.1 255.255.255.0 !
router ospf 1
router-id 1.1.1.1 network 192.168.1.0 0.0.0.255 area 0
R2#show running-config
--
interface GigabitEthernet0/0 ip address 192.168.1.2 255.255.255.0 !
router ospf 1
router-id 2.2.2.2 network 192.168.1.0 0.0.0.255 area 0
A growing company with an increasing international presence requires a secure and scalable solution for inter-office data transfer across their geographically dispersed locations.
To ensure departmental privacy, the network must enforce granular access control. BGP is running in the network, and two VRF instances with unique route distinguishers and route targets have been configured to segregate critical financial data from regular network traffic.
A network engineer with an employee ID: 5086:72:617 must find a solution that allows for future network expansion while maintaining robust security and data privacy between departments. The solution must comply with the RFC 4364 standard.
Which action must the engineer take to meet the requirements?
A. Configure a GRE tunnel in AH mode between the two routers.
B. Configure MPLS in L3VPN mode between the two routers.
C. Configure a DMVPN connection between the two routers with Phase 2 mode enabled.
D. Configure an IPsec VPN connection between the two routers with ESP protocol enabled. -
Question 293:
Refer to the exhibit.
A network engineer is implementing multicast Source-A to send a multicast stream for Receiver-A, and multicast Source-B to send a multicast stream for Receiver-B. Router RC forwards the IGMP host a report and leaves messages to IP address 192.168.10.1. How must the multicast features be implemented to prevent RB from receiving multicast flooding from Source-A?
A. Change the helper-address value to 192.168.10.2 on RC.
B. Enable ip pim neighbor-filter on RC interface Ge0/0.
C. Configure PIM-SSM on RB and RC interface Ge 0/0.
D. Enable ip pim passive on RB interface Ge0/0. -
Question 294:
In a service provider network, a NOC engineer identifies an interface that flaps continuously. This interface connects to an EBGP peer. Which feature can reduce this instability on the service provider network?
A. Non-Stop Forwarding
B. BGP PIC
C. IGP Prefix Prioritization
D. IP Event Dampening -
Question 295:
After a series of unexpected device failures on the network, a Cisco engineer is deploying NSF on the network devices so that packets continue to be forwarded during switchovers. The network devices reside in the same building, but they are physically separated into two different data centers. Which task must the engineer perform as part of the deployment?
A. Implement an L2VPN with the failover peer to share state information between the active and standby devices.
B. Implement OSPF to maintain the link-state database during failover.
C. Implement VRFs and specify the forwarding instances that must remain active during failover.
D. Implement Cisco Express Forwarding to provide forwarding during failover. -
Question 296:
Refer to the exhibit.
Routers R1 and R2 support traffic between multiple departments at a company's remote office and exchange routes using OSPF. The link between R1 and R2 has been providing inconsistent performance, particularly during times of peak usage. To help identify the cause, an engineer was asked to implement BFD to detect failures on the link.
Which task must the engineer perform?
A. Configure the session parameters individually on each interface.
B. Configure IS-IS to share routes between the routers.
C. Change the network between R1 and R2 to a /30 prefix.
D. Configure echo mode on both devices to support asymmetry. -
Question 297:
How does BGPsec protect advertisements by preventing from the malicious traffic flows?
A. It validates the AS path
B. It validates only the originating AS
C. It validates routes with encryption
D. It validates the next-hop AS -
Question 298:
Refer to the exhibit.
An engineer is preparing to implement link aggregation configuration.
Which statement about this configuration is true?
A. The switch port negotiates an EtherChannel if it receives LACP packets from a connected peer running passive mode.
B. The switch port actively sends packets to negotiate an EtherChannel using PAgP.
C. The switch port passively negotiates an EtherChannel if it receives PAgP packets from a connected peer.
D. The switch port accepts LACP and PAgP packets from a connected peer and negotiate an EtherChannel using the common EtherChannel mode. -
Question 299:
A network engineer has configured TE tunnels in the MPLS provider core. Which two steps ensure traffic traverse? (Choose two.)
A. ECMP between tunnels allows RSVP to function correctly.
B. The IGP metric of a tunnel is configured to prefer a certain path.
C. A tunnel weight is configured in SPF database the same way as a native link.
D. Static route is the only option for directing traffic into a tunnel.
E. Forwarding adjacency feature allows a tunnel to be installed in the IGP table as a link. -
Question 300:
Refer to the exhibit.
An Ethernet access provider is configuring routers PE-1 and PE-2 to provide E-Access EVPL service between UNI and ENNI. ENNI service multiplexing is based on 802.1ad tag 150, and service-multiplexed UNI is based on 802.1q tag 10. Which EFP configurations must the provider implement on PE-1 and PE-2 to establish end-to-end connectivity between CE-1 and CE-2?
A. On PE-1:interface GigabitEthernet2service instance 100 ethernetencapsulation dot1ad 150rewrite ingress tag pop 1 symmetricOn PE-2:interface GigabitEthernet2service instance 2 ethernetencapsulation dot1q 10
B. On PE-1:interface GigabitEthernet2service instance 100 ethernetencapsulation dot1q 150rewrite ingress tag pop 1 symmetricOn PE-2:interface GigabitEthernet2service instance 2 ethernetencapsulation dot1q 10
C. On PE-1:interface GigabitEthernet2service instance 100 ethernetencapsulation dot1ad 150 dot1q 10rewrite ingress tag pop 2 symmetricOn PE-2:interface GigabitEthernet2service instance 2 ethernetencapsulation dot1q 10
D. On PE-1:interface GigabitEthernet2service instance 100 ethernetencapsulation dot1ad 150rewrite ingress tag pop 1 symmetricOn PE-2:interface GigabitEthernet2service instance 2 ethernetencapsulation dot1q 10rewrite ingress tag pop 1 symmetric
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