Download Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR).350-501.ExamTopics.2025-09-18.394q.vcex

Vendor: Cisco
Exam Code: 350-501
Exam Name: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR)
Date: Sep 18, 2025
File Size: 31 MB
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Demo Questions

Question 1
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?
Correct answer: A
Explanation:
A: 7 - Mosted
A: 7 - Mosted
Question 2
Refer to the exhibit. An engineer is implementing the BGP attribute on the customer's network to select the preferred path. Only BGP’s well-known discretionary attribute must be used. FTP prefixes should not be selected as part of this implementation. Which configuration must the engineer implement to complete the task?
  1. router bgp 100
    neighbor 10.0.0.1 remote-as 500
    neighbor 10.0.0.1 route-map ciscotest in
  2. router bgp 100
    neighbor 10.0.0.1 remote-as 500
    neighbor 10.0.0.1 route-map ciscotest both
  3. router bgp 100
    neighbor 10.0.0.1 remote-as 500
    neighbor 10.0.0.1 route-map ciscotest
  4. router bgp 100
    neighbor 10.0.0.1 remote-as 500
    neighbor 10.0.0.1 route-map ciscotest out
Correct answer: A
Explanation:
A: 7 - Mosted
A: 7 - Mosted
Question 3
Refer to the exhibit. A network engineer with an employee ID 4402:98:032 is setting up an IS-IS network with these requirements:
  • Routes with a tag of 80 and IP prefixes other than 192.168.10.20/24 must be redistributed from Level 1 into Level 2
  • Route leaking must be configured from Level 2 into the Level 1 domain for routes that are tagged with only 50 or 40
Which configuration must be implemented on RB to meet the requirements?
  1. Remove match tag 40 from route-map leak2-1
  2. Add match tag 80 in route-map leak2-1
  3. Change match tag 80 to match tag 50 in route-map redist1-2
  4. Add match ip address 152 in route-map redist1-2
Correct answer: D
Explanation:
D: 5 - Mosted
D: 5 - Mosted
Question 4
In an EVPN operation how does the PE determine and advertise Ethernet segment reachability?
  1. The PE discovers and shares routing information for the B-MAC addresses associated with local Ethernet segments.
  2. The PE discovers remote ESIs and determines their redundancy mode.
  3. The PE discovers the remote PEs in the EVI and builds a flood list linked with the EVI.
  4. The PE discovers other PEs in the same Ethernet segment and elects a DF.
Correct answer: C
Explanation:
B: 2 - Mosted
B: 2 - Mosted
Question 5
Refer to the exhibit. An engineer ran this show telemetry command to view subscription SUB11 on RouterX. The engineer then decided that RouterY should provide the same output for sensor group SGroup13 as RouterX. The engineer cannot access RouterX to copy its configuration No access lists on the router block user access. Which configuration must the engineer apply on RouterY to provide the same output from the show telemetry command?
  1. RouterY(config)# telemetry model-driven
    RouterY(config-model-driven)# subscription SGroup13
    RouterY(config-model-driven-subs)# sensor-group-id SGroup13 sample-interval 20000
  2. RouterY(config)# telemetry model-driven
    RouterY(config-model-driven)# sensor-group SGroup13
    RouterY(config-model-driven-snsr-grp)# sensor-path openconfig-interfaces:interfaces/interface
  3. RouterY(config)# telemetry model-driven
    RouterY(config-model-driven)# destination-group SUB11
    RouterY(config-model-driven-dest)# address family ipv4 172.16.10.1 port 22471
    RouterY(config-model-driven-dest-addr)# encoding self-describing-gpb
    RouterY(config-model-driven-dest-addr)# protocol tcp
  4. RouterY(config)# telemetry model-driven
    RouterY(config-model-driven)# subscription SUB11
    RouterY(config-model-driven-subs)# sensor-group-id SGroup13 sample-interval 20000
    RouterY(config-model-driven-subs)# destination-id DGroup1
Correct answer: B
Explanation:
B: 4 - Mosted
B: 4 - Mosted
Question 6
Refer to the exhibit. An engineer is scripting ACLs to handle traffic on the given network. The engineer must block users on the network between R1 and R2 from leaving the network through R5, but these users must still be able to access all resources within the administrative domain. How must the engineer implement the ACL configuration?
  1. Configure a permit any ACL on the R1 interface to R2 in the egress direction, and a deny any ACL on the interface in the ingress direction
  2. Configure an ACL that permits traffic to any internal address, and apply it to the R5 interfaces to R3 and R4 in the egress direction
  3. Configure an ACL that denies traffic to any internal address and denies traffic to any external address, and apply it to the R5 interfaces to R3 and R4 in the ingress direction
  4. Configure an ACL that permits traffic to all internal networks and denies traffic to any external address, and apply it to the R2 interface to R1 in the ingress direction
Correct answer: D
Explanation:
D: 4 - Mosted
D: 4 - Mosted
Question 7
An engineer must apply an 802.1ad-compliant configuration to a new switchport with these requirements:
  • The switchport must tag all traffic when it enters the port.
  • The switchport is expected to provide the same level of service to traffic from any customer VLAN.
Which configuration must the engineer use?
  1. interface GigabitEthernet1/0/1 switchport mode trunk switchport trunk encapsulation dot1q encapsulation ISL bridge-domain 12
  2. interface GigabitEthernet1/0/1 ethernet dot1ad uni c-port service instance 12 encapsulation dot1q rewrite ingress tag push dot1ad 21 symmetric bridge-domain 12
  3. interface GigabitEthernet1/0/1 ethernet dot1ad uni s-port service instance 12 encapsulation default rewrite ingress tag push dot1ad 21 symmetric bridge-domain 12
  4. interface GigabitEthernet1/0/1 ethernet dot1ad nni service instance 12 encapsulation dot1ad bridge-domain 12
Correct answer: C
Explanation:
C: 1
C: 1
Question 8
Refer to the exhibit. An engineer is configuring router R1 for OSPFv3 as shown. Which additional configuration must be performed so that the three active interfaces on the router will advertise routes and participate in OSPF IPv6 processes?
Correct answer: C
Question 9
Refer to the exhibit. A large service provider is migrating device management from Layer 2 VLAN-based to Layer 3 IP-based solution. An engineer must configure the ISIS solution with these requirements:
  • Network management server IP 172.16.10.1 must be advertised from the core MPLS network to the regional domain.
  • The external network 202.10.0.0/24 must not establish ISIS peering with the R5 router.
  • The regional network must prevent sending unnecessary hello packets and flooding the routing tables of the R5 router.
Which two ISIS parameters must be implemented to meet these requirements? (Choose two.)
  1. LSP lifetime maximum
  2. advertise-passive-only
  3. overload bit passive
  4. attached bit on ISIS instance
  5. passive-interface Loopback0
Correct answer: BE
Explanation:
BE: 4 - Mosted
BE: 4 - Mosted
Question 10
Refer to the exhibit. An engineering team must update the network configuration so that data traffic from router A to router D continues in case of a network outage between routers B and C. During a recent outage on the B-C link, the IGP traffic path was switched to the alternate path via routers E and F, but label forwarding did not occur on the new path. Which action ensures that traffic on the end-to-end path continues?
  1. Configure the same hello timer values for IGP and LDP
  2. Enable LDP Session Protection on routers A and D
  3. Bind the BFD protocol with IGP on all routers
  4. Enable MPLS LDP IGP Synchronization on all routers
Correct answer: D
Explanation:
C: 1D: 6 - Mosted
C: 1D: 6 - Mosted
Question 11
Refer to the exhibit. What is the effect of this configuration applied on the IOS XR router?
  1. It is used to enable gRPC
  2. It is used to create a streaming subscription with a 600-second interval
  3. It is used to set up configuration to poll network data
  4. It is used to create a streaming subscription with a 60-second interval
Correct answer: D
Explanation:
D: 1
D: 1
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