350-501 Cisco Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR) Free Practice Exam Questions (2025 Updated)

The ISIS topology exhibit indicates that all four routers are configured as Level 1-2 routers, which means they can operate in both Level 1 and Level 2 IS-IS areas. This is evident from the net addresses that show a mix of area addresses, allowing for intra-area (Level 1) and inter-area (Level 2) routing. Additionally, R1 and R2 are Level 2 neighbors because they have different area addresses, allowing them to form Level 2 adjacencies and route between different areas.

References: = Implementing and Operating Cisco Service Provider Network Core Technologies course materials. 

The configuration shown in the exhibit enables IP flow information collection on the interface gigabitethernet0/1. This setup is used for network traffic analysis, and when applied, it provides data that includes the source interface of the traffic for traceback analysis. This is useful for identifying the origin of traffic, which can be critical in situations such as security incidents or network troubleshooting.

References: The details for this configuration can be found in the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course materials, which serve as a comprehensive guide for understanding and applying Cisco service provider technologies.

The correct configuration for enabling BGP FlowSpec client function and installation of policies on all local interfaces is flowspec address-family ipv4 install interface-all local. This command configures the router to accept FlowSpec policies from a BGP peer and apply them to all local interfaces. The flowspec keyword enables the BGP FlowSpec client function, address-family ipv4 specifies the address family, and install interface-all local ensures that the policies are installed on all local interfaces. References := Implementing and Operating Cisco Service Provider Network Core Technologies course.

The issue of no LDP neighbor existing for 1.1.1.1 between two directly connected routers could be due to R2 not receiving any hellos from R1. In the context of LDP (Label Distribution Protocol), hellos are used for the discovery of LDP peers. They are sent periodically on each interface that LDP is enabled on to discover and maintain LDP sessions with neighbors. If R2 is not seeing any hellos from R1, it means there’s a failure in the initial step of establishing an LDP session, hence no neighbor relationship is formed.

References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide can provide more insights into the workings and troubleshooting steps for LDP protocol.

 By setting IP precedence values (using Differentiated Services Code Point - DSCP) and configuring traffic policing, the network can enforce policies to drop or mark packets based on their priority. When traffic exceeds the specified threshold, the network can take appropriate actions.

References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) v1.0

The configuration applies a QoS policy to the pos0/2/0/0 interface, which affects traffic as it exits the interface. The policy map “ciscopolicy” references the class map “ciscotest”, where traffic matching the class map criteria will be remarked. The command set precedence 1 within the class map “ciscotest” indicates that the traffic will be remarked to IP precedence 1. Therefore, the correct effect of this configuration is that traffic identified by the “ciscotest” class map will be remarked from its original IP precedence to IP precedence 1 when it exits the pos0/2/0/0 interface.

References: = This explanation is based on the QoS configuration practices as outlined in the Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course materials.

The full separation model for Internet access and MPLS L3VPN services is chosen to enable EGP (Exterior Gateway Protocol) and IGP (Interior Gateway Protocol) to operate independently. In this model, the internet access and MPLS L3VPN services are fully separated, ensuring that the two networks do not interfere with each other’s operation. This separation enhances network security, performance, and manageability. References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide

The exhibit shows a snippet of configuration for a router using OSPF (Open Shortest Path First) protocol along with segment-routing MPLS (Multiprotocol Label Switching) and segment-routing forwarding MPLS.

In the context of Cisco Service Provider Network Core Technologies, segment routing is designed to be highly scalable, flexible, and allows for simplified traffic engineering and management across network domains.

Once the initial setup is done (as shown in the exhibit), segment routing can operate without any additional configuration. The segment-routing MPLS and segment-routing forwarding MPLS commands are sufficient for the operation of segment routing.

References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide.

 The issue described involves packets being dropped when sent from the application server to the access site. Since OSPF and BGP peerings are confirmed to be operational, the problem likely lies within the route advertisement. Allowing 172.16.20.1 in the BGP advertisement on R3 by adjusting the route-map will likely resolve the issue, ensuring that traffic destined for 172.16.20.1 is not being inadvertently filtered or blocked.

References:

Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course provides insights into configuring, verifying, troubleshooting, and optimizing Service Provider IP network infrastructures, which includes understanding and implementing BGP routing and route maps1.

The official Cisco certification exam overview for SPCOR, which includes topics on BGP routing and route maps, can also serve as a reference

To secure REST APIs, a network administrator should ensure that user sessions are authenticated and that the appropriate privilege level is provided for each user. This means that each API request should come with authentication credentials, and the server should validate these credentials for every request. This approach helps to maintain the stateless nature of REST APIs and ensures that only authorized users can access or modify resources. References: Best practices for securing REST APIs include using HTTPS, token-based authentication, and proper validation of input parameters to prevent common security vulnerabilities.

 In BGP, the Local Preference attribute is used to influence the exit point from an AS (Autonomous System). A higher local preference value is preferred, and all routes received inherit the local preference value of the route that is installed in the IP routing table. So, configuring a higher local preference outbound will make specific BGP speakers as preferred exit points for customer AS. References := Cisco

 In the context of Implementing and Operating Cisco Service Provider Network Core Technologies, LDP-IGP Synchronization is configured to ensure that the IGP and LDP convergences are synchronized. Option C is correct because it shows the configuration where router ISIS 1 is being configured with MPLS LDP sync, but not on a specific interface, ensuring that LDP is operational on all interfaces where IS-IS is enabled before routes are advertised. References := Cisco