1. Describe the Value of Model Driven Programmability for Infrastructure Automation 200-901 Practice Questions (Page 8)

Questions 36–40

1. 36application · medium

   A network engineer needs to retrieve the current OSPF configuration from a router to include in a network inventory report. The engineer wants the data to be in a structured format that can be easily parsed by a Python script. Which method is most appropriate?

   • AUse NETCONF to retrieve the OSPF configuration using a YANG model
   • BUse ping to check OSPF status
   • CUse 'show running-config' and parse the text output
   • DUse traceroute to map OSPF paths
   Reveal Solution Discussion Select an answer first
2. 37expert · hard

   A network automation team is building a tool that needs to support multiple vendors and also allow custom extensions for vendor-specific features. They want to use a standard data modeling language that can be extended. Which approach is most aligned with model-driven programmability?

   • AUse a proprietary data format defined by the team
   • BUse SNMP MIBs for all features
   • CUse CLI parsing to extract vendor-specific features
   • DUse YANG models, including vendor-specific augmentations, to represent both standard and custom features
   Reveal Solution Discussion Select an answer first
4. 38expert · hard

   A network engineer is comparing two automation approaches: (1) writing a Python script that uses Netmiko to SSH to devices and run CLI commands, and (2) using NETCONF with YANG models. The engineer needs to automate a change that affects 50 devices and must be able to verify the change on each device. Which statement best reflects the advantage of the NETCONF approach?

   • ANETCONF is faster than SSH
   • BNETCONF can only be used on Cisco devices
   • CNETCONF provides structured, machine-readable output that is easier to verify programmatically
   • DNETCONF does not require authentication
   Reveal Solution Discussion Select an answer first
5. 39application · medium

   A network admin is troubleshooting a configuration issue. The admin used a CLI command to change a setting, but the change did not take effect because the command was entered incorrectly. The admin wants to avoid such errors in the future. Which advantage of model-driven programmability directly addresses this?

   • AIt provides a command-line interface with auto-completion
   • BIt allows the admin to see the configuration in a graphical format
   • CIt automatically rolls back any change that causes an error
   • DData models validate the configuration before it is applied, catching invalid values
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6. 40expert · hard

   A network automation team is building a system that must support both Cisco and Juniper devices. They want to write a single set of automation scripts that can configure BGP on both platforms. They also need to ensure that the scripts can be extended to new vendors in the future. Which approach is most aligned with model-driven programmability?

   • AUse vendor-specific NETCONF models
   • BUse SNMP to configure BGP
   • CWrite separate scripts for each vendor using native CLI
   • DUse OpenConfig YANG models with NETCONF
   Reveal Solution Discussion Select an answer first