1. Describe the Value of Model Driven Programmability for Infrastructure Automation 200-901 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   How do data models like YANG contribute to vendor-neutral automation?

   • AThey provide a common, structured representation of network data that can be used across devices from different vendors.
   • BThey require all vendors to use identical hardware.
   • CThey eliminate the need for any vendor-specific software on the device.
   • DThey translate vendor-specific CLI commands into a common language.
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2. 7foundation · easy

   How does model-driven programmability contribute to scalability in network automation?

   • ABy allowing the same automation script to manage many devices without modification, because they share the same data models.
   • BBy using manual processes to ensure accuracy when adding new devices.
   • CBy limiting automation to a small number of devices to avoid errors.
   • DBy requiring a separate script for each device model to handle its unique CLI syntax.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A network engineer is comparing two methods to change the MTU on a set of routers. The CLI method requires entering configuration mode on each device and typing interface-specific commands. The model-driven method uses a YANG data model to push the desired MTU value to each device. Which advantage of the model-driven method is most significant in this scenario?

   • AIt reduces the risk of syntax errors because the data model validates the configuration before applying it
   • BIt allows the engineer to see the configuration in a human-readable text format
   • CIt eliminates the need for any authentication or authorization on the devices
   • DIt requires less knowledge of networking concepts because the model abstracts everything
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5. 9application · medium

   A network team currently manages a fleet of 200 switches by pasting CLI configuration snippets over SSH. They are planning to automate configuration changes across the fleet. The team wants to reduce the risk of syntax errors and ensure that every device receives the same configuration regardless of vendor or OS version. Which approach best meets these requirements?

   • AUse NETCONF with YANG models to push the same structured configuration to all devices
   • BUse Python scripts that SSH to each device and run vendor-specific CLI commands
   • CUse SNMP to set configuration objects on each device
   • DUse a TFTP server to push configuration files to each device
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6. 10application · medium

   A network team is automating the deployment of new access switches. They want to ensure that the configuration is consistent across all switches and that any errors are caught before the configuration is applied. Which feature of model-driven programmability supports this?

   • ASchema validation before commit
   • BFaster CLI execution
   • CAutomatic IP address management
   • DBuilt-in firewall rules
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