In NSO, how are service definitions typically modeled?

Using YANG models that describe the service parameters and the mapping to device configurations

Using Python scripts that directly manipulate device CLIs

Using SNMP MIBs to define service parameters

Using XML schemas that are converted to device-specific CLI commands at runtime

A customer's VPN service in NSO was provisioned with a bandwidth of 100 Mbps. The customer now requests an upgrade to 200 Mbps. The service model includes a 'bandwidth' leaf. What is the correct way to implement this change in NSO?

Create a new service model with the new bandwidth and redeploy all services.

Delete the service instance and recreate it with the new bandwidth.

Modify the service instance's 'bandwidth' leaf to 200 Mbps and commit the change.

Manually change the bandwidth on the devices and then update the service instance in NSO.

A service provider is considering using NSO to automate the rollout of a new service across 10,000 devices. The team is concerned about the impact on the network if a service deployment fails midway. What feature of NSO addresses this concern?

NSO's transaction-based commit system ensures that changes are either fully applied or rolled back.

NSO's network element drivers retry failed operations automatically.

NSO's CDB automatically backs up all configurations before any change.

NSO's service manager can pause the deployment if an error occurs.

How does NSO provide a northbound interface for external automation tools and orchestration systems?

By allowing external tools to directly modify the CDB

By exposing a RESTCONF API that allows tools to manage services using HTTP methods

By providing a direct SNMP interface for service provisioning

By requiring external tools to use the same CLI as the network devices

CiscoCertified Network Professional Service Provider

Domain 5Objective 3

5.3 Describe the Role of Network Services Orchestration (NSO) 350-501 Practice Questions (Page 5)

Part of the Automation and Assurance domain, which accounts for 15% of the 350-501 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 1–1 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

5concepts

15%of the exam

Questions 21–25

21foundation · easy
In NSO, how are service definitions typically modeled?
Select an answer first
22application · medium
A service provider wants to allow its customers to self-service provision new VPNs through a web portal. The portal needs to interact with NSO to create, modify, and delete service instances. Which NSO interface is most appropriate for this integration?
Select an answer first
23application · medium
A customer's VPN service in NSO was provisioned with a bandwidth of 100 Mbps. The customer now requests an upgrade to 200 Mbps. The service model includes a 'bandwidth' leaf. What is the correct way to implement this change in NSO?
Select an answer first
24expert · hard
A service provider is considering using NSO to automate the rollout of a new service across 10,000 devices. The team is concerned about the impact on the network if a service deployment fails midway. What feature of NSO addresses this concern?
Select an answer first
25foundation · easy
How does NSO provide a northbound interface for external automation tools and orchestration systems?
Select an answer first

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