5.3 Describe the Role of Network Services Orchestration (NSO) 350-501 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   An NSO deployment is experiencing performance degradation during large-scale service provisioning. The team notices that the CDB is consuming excessive memory and the service manager is slow to respond. They suspect that the issue is related to how services are modeled and instantiated. Which action is most likely to improve performance?

   • AUse the CLI to manually create service instances instead of the RESTCONF API.
   • BRefactor the service YANG models to reduce the number of service instances and use list keys more efficiently.
   • CIncrease the number of network element drivers to distribute the load.
   • DDisable the CDB and use an external database for service state.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which protocol is commonly used by NSO to communicate with network devices that support it, providing a standardized way to edit configurations and retrieve state data?

   • ASNMP
   • BNETCONF
   • CFTP
   • DHTTP
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   An NSO developer is creating a new service that must interact with a legacy device that only supports CLI. The service must be able to provision and deprovision the device configuration. What does the developer need to create to allow NSO to manage this device?

   • AA network element driver (NED) that translates NSO's YANG-based configuration into CLI commands.
   • BA new YANG model for the device that NSO can compile.
   • CA service model that includes the CLI commands directly.
   • DA custom Python script that runs on the device to accept NETCONF.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   In the NSO architecture, what is the primary function of the Configuration Database (CDB)?

   • ATo hold the intended configuration and operational state of managed devices, enabling NSO to act as the source of truth
   • BTo store the actual forwarding tables of all managed devices
   • CTo store the binary images of device operating systems for upgrade purposes
   • DTo cache syslog messages and SNMP traps for later analysis
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   An NSO administrator is troubleshooting a service instance that was recently modified. The change was applied to the network, but the service's operational status in NSO does not reflect the current state. Which NSO component is most likely responsible for maintaining the service and device state that the administrator should inspect?

   • AThe network element driver
   • BThe service manager
   • CThe Configuration Database (CDB)
   • DThe YANG model compiler
   Reveal Solution Discussion Select an answer first