6.3 Describe the High-Level Principles and Benefits of a Data Modeling Language, Such as YANG 350-401 Practice Questions (Page 7)

Questions 31–35

1. 31expert · hard

   A large enterprise is adopting YANG for network automation. They have a mix of Cisco IOS-XE and Juniper devices. The team wants to use a common set of YANG models to manage both platforms. Which approach is most effective?

   • AUse the IETF standard YANG models, which are the same for all vendors.
   • BCreate a custom YANG model that combines both vendors' native models.
   • CUse OpenConfig YANG models, which are vendor-neutral and supported by both vendors.
   • DUse the native YANG models from each vendor and write separate automation scripts for each.
   Reveal Solution Discussion Select an answer first
2. 32expert · medium

   A network automation engineer is integrating a third-party YANG module into an existing system. The module defines a container named 'acl' that conflicts with a container in the system's own module. The engineer needs to use both modules without modifying either. What is the correct approach?

   • AUse the module revision dates to distinguish the containers.
   • BUse the module namespaces to qualify the 'acl' containers in the NETCONF payloads.
   • CLoad the third-party module in a separate NETCONF session.
   • DUse the module file names to distinguish the containers.
   Reveal Solution Discussion Select an answer first
4. 33expert · hard

   A network engineer is automating the deployment of a new branch office. The automation must configure VLANs, interfaces, and routing on multiple devices. The engineer wants to ensure that the configuration is consistent and that errors are caught before any device is partially configured. Which approach best meets these requirements?

   • AUse NETCONF with YANG models and the candidate configuration datastore to validate and commit changes atomically.
   • BUse SNMP to set configuration objects on each device.
   • CUse CLI commands with a script that checks the output after each command.
   • DUse RESTCONF with YANG models and the running datastore directly.
   Reveal Solution Discussion Select an answer first
5. 34foundation · easy

   What is a key advantage of using YANG models in network automation?

   • AThey increase the physical speed of network links.
   • BThey automatically secure the network from all threats.
   • CThey allow automation scripts to be written once and used across devices from different vendors.
   • DThey eliminate the need for network monitoring.
   Reveal Solution Discussion Select an answer first
6. 35application · medium

   A network engineer is integrating two YANG modules from different vendors, both of which define a container named 'system'. The engineer needs to use both modules in the same NETCONF session without conflict. What is the correct way to handle this?

   • AUse a different NETCONF session for each module.
   • BLoad only one module at a time and unload the other before use.
   • CUse the namespace of each module to distinguish the two 'system' containers.
   • DRename one of the containers to 'system-vendor2' in the module source.
   Reveal Solution Discussion Select an answer first