Cisco 350-501 Online Practice
Questions and Exam Preparation
350-501 Exam Details
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
:Jul 11, 2026
Cisco 350-501 Online Questions &
Answers
Question 51:
A network engineer must enable multicast on the network to support a new series of webcasts. The PIM protocol has been enabled on the LAN side, with PIM and MSDP capabilities on edge router R1. The multicast source has been configured with IP address FF3A:121, and IP protocol 58 has been enabled and successfully tested in the network. Due to the limitations of some devices on the network, the data flow should take the most efficient path.
Which task must the engineer perform to achieve the goal?
A. Enable PIM BSR on R1. B. Implement Anycast RP on R1. C. Implement PIM-SM in the LAN. D. Enable PIM-SSM across the network.
D. Enable PIM-SSM across the network.
Explanation
Question 52:
Refer to the exhibit:
R1 and R2 are directly connected with Fast Ethernet interfaces and have the above configuration applied OSPF adjacency is not formed. When the are seen:
debug ip ospf hello command is issued on R1, these log messages
Which command can be configured on routers R1 and R2 on f0/0 interfaces to form OSPF adjacency?
A. ip ospf network point-to-multipoint non-broadcast B. ip ospf network non-broadcast C. ip ospf network broadcast D. ip ospf network point-to-point
D. ip ospf network point-to-point
Explanation
The OSPF adjacency issue between R1 and R2 is likely due to mismatched OSPF network types or hello/dead interval settings. The command ip ospf network point-to-point is used on point-to-point network types, which do not require matching hello/dead intervals, thus allowing OSPF adjacency to form even if these intervals are mismatched on the two routers.
Question 53:
Refer to the exhibit.
Users in AS 65010 are connected with the application server in AS 65050 with these requirements:
1. AS 65010 users are experiencing latency and congestion to connect with application server 172.16.50.10.
2. AS 65030 must be restricted to become Transient Autonomous System for traffic flow.
3. Links connected to AS 65020 and AS 65040 are underutilized and must be used efficiently for traffic.
Which two configurations must be implemented to meet these requirements? (Choose two.)
A. Apply the AS-Path route-map policy for traffic received from R3. B. Configure the route map to prepend the AS-Path attribute for R5-R3 BGP peering. C. Apply the MED route-map policy for traffic received from R4. D. Configure a higher Local preference for R5-R4 BGP peering. E. Configure the route map to set the MED 50 attribute for R5-R4 BGP peering.
A. Apply the AS-Path route-map policy for traffic received from R3. B. Configure the route map to prepend the AS-Path attribute for R5-R3 BGP peering.
Explanation
Question 54:
Refer to the exhibit.
To optimize network operations, the senior architect created this Python 3.9 script for network automation tasks and to leverage Ansible 4.0 playbooks. Devices in the network support only RFC 2617-based authentication. What does the script do?
A. The script performs a configuration sanity check on the device with IP address 172.168.211.65 via HTTP and returns an alert if the payload field fails to match. B. The script leverages REST API calls and configures interface GigabitEthernet0/1 with IP address 10.1.131.112/30. C. The script parses the JSON response from the router at IP address 172.168 211.65 and checks if the interface GigabitEthernet0/1 with IP address 10.1.131.112 exists on the router. D. The script logs in via SSH and configures interface GigabitEthernet0/1 with IP address 10 1.131.112/30.
B. The script leverages REST API calls and configures interface GigabitEthernet0/1 with IP address 10.1.131.112/30.
Explanation
The script is designed to leverage REST API calls for network configuration tasks. It uses the requests library in Python to send a PATCH request to the device with IP address 172.168.211.65. The script includes RFC 2617-based authentication, which is used for HTTP, indicating that it's not using SSH for login. The payload of the REST API call specifies the configuration for the interface GigabitEthernet0/1 with the IP address 10.1.131.112/30. Therefore, the script is performing option B, configuring the
interface via REST API calls.
The explanation is based on general knowledge of Python scripting for network automation and REST API interactions as typically covered in network automation sections of Cisco Service Provider courses and documentation.
Question 55:
Refer to the exhibit.
An engineer has started to configure a router for OSPF, as shown.
Which configuration must an engineer apply on the network so that area 15 traffic from R5 to R1 will prefer the route through R4?
A. Implement a sham link on the link between R3 and R2 to extend area 0 over area 15. B. Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred. C. Place the link between R3 and R5 in a stub area to force traffic to use the route through R4. D. Increase the cost on the link between R2 and R3 to a value higher than the link between R2 and R4, to influence the path over R3 and R4.
B. Implement a multiarea adjacency on the link between R2 and R4, with the cost manipulated to make the path through R4 preferred.
Explanation
After doing an easy lab I can say for certain that the answer is B. To add some more information to clarify, R3 wil ALWAYS prefer the INTRA-area link to R2, no matter the cost assigned to the interface. So it is until the inter-area 0 link between R2-R4 is configured as multiarea also in area 15, that the cost of the interface comes into play.
Router 1 was experiencing a DDoS attack that was traced to interface gigabitethernet0/1.
Which statement about this configuration is true?
A. Router 1 accepts all traffic that ingresses and egresses interface gigabitethernet0/1. B. Router 1 drops all traffic that ingresses interface gigabitethernet0/1 that has a FIB entry that exits a different interface. C. Router 1 accepts source addresses that have a match in the FIB that indicates it is reachable through a real interface. D. Router 1 accepts source addresses on interface gigabitethernet0/1 that are private addresses.
C. Router 1 accepts source addresses that have a match in the FIB that indicates it is reachable through a real interface.
Explanation
The configuration ip verify unicast source reachable-via any under interface gigabitethernet0/1 on Router 1 ensures that incoming packets have a source IP address that matches an entry in the FIB (Forwarding Information Base), indicating it's reachable via a real interface. This helps mitigate attacks by dropping traffic with unreachable source addresses.
When configuring traffic engineering tunnels in Cisco MPLS core network, you see the traffic is not tacking the expected path in the core.
Which command do you use to quickly check path of a TE tunnel?
A. traceroute B. show mpls traffic-engineering tunnels C. Ping D. traceroute mpls ipv4
D. traceroute mpls ipv4
Explanation
Question 58:
Refer to the exhibit.
What is significant about the number 2 in the configuration?
A. It indicates two SNMP managers can read and write with the agent using community string ciscotest. B. It dictates the number of sessions that can be open with the SNMP manager. C. It is the numeric name of the ACL that contains the list of SNMP managers with access to the agent. D. It represents the version of SNMP running.
C. It is the numeric name of the ACL that contains the list of SNMP managers with access to the agent.
Explanation
The number 2 in the configuration "snmp-server community ciscotest ro 2" is significant because it refers to the numeric name of the Access Control List (ACL) that contains the list of SNMP managers with access to the agent. In this context, "ro" stands for read-only, meaning that SNMP managers listed in ACL 2 can only read data from the SNMP agent but cannot modify it. The ACL defines which IP addresses are allowed to access SNMP data. References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide
Question 59:
Refer to the exhibit.
A large organization is merging the network assets of a recently acquired competitor with one of its own satellite offices in the same geographic area. The newly acquired network is running a different routing protocol than the company's primary network. As part of the merger, a network engineer implemented this route map.
Which task must the engineer perform to complete the implementation?
A. Attach the route map to the redistribution command to manipulate the routes as they are shared. B. Enable metric-style wide to allow the use of extended metrics from the protocols. C. Configure an additional route map sequence to override the implicit deny at the end of the route map. D. Attach the route map to an IS-IS network statement to advertise the routes learned on this interface to IS-IS.
B. Enable metric-style wide to allow the use of extended metrics from the protocols.
Explanation
Question 60:
Refer to the exhibit.
A network operator is attempting to configure an IS-IS adjacency between two routers, but the adjacency cannot be established. To troubleshoot the problem, the operator collects this debugging output.
Which interfaces are misconfigured on these routers?
A. The R2 interface is configured as point-to-point, and the peer router interface is configured as multipoint. B. The R2 interface is configured as Level 1 only, and the peer router interface is configured as Level 2 only. C. The peer router interface is configured as point-to-point, and the R2 interface is configured as multipoint. D. The peer router interface is configured as Level 1 only, and the R2 interface is configured as Level 2 only.
B. The R2 interface is configured as Level 1 only, and the peer router interface is configured as Level 2 only.
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