5.4 Describe the High-Level Principles and Benefits of a Data Modeling Language, Such as YANG 350-501 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which of the following is a key benefit of using YANG for network automation?

   • AIt provides a proprietary data format that locks in a single vendor
   • BIt automatically resolves network configuration errors
   • CIt enables multi-vendor interoperability by standardizing data models
   • DIt eliminates the need for network monitoring protocols
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A service provider is automating the deployment of new services. The automation team wants to ensure that the configuration data sent to devices is correct before it is applied. Which feature of YANG directly supports this requirement?

   • AYANG generates a report of all configuration errors.
   • BYANG defines data types and constraints that validate configuration data.
   • CYANG automatically corrects invalid configuration data.
   • DYANG allows the use of regular expressions to validate string values.
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A service provider is planning to use YANG to automate the configuration of access devices from multiple vendors. The automation team is concerned about the learning curve for network engineers. Which benefit of YANG is most likely to reduce the learning curve?

   • AYANG provides a single, consistent way to describe configuration across vendors.
   • BYANG eliminates the need to understand networking concepts.
   • CYANG models are written in a human-readable format that is similar to JSON.
   • DYANG automatically generates documentation for all device features.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   How does YANG contribute to network programmability?

   • ABy automatically translating CLI commands into API calls
   • BBy providing a scripting language that runs directly on network devices
   • CBy defining a structured schema that applications can use to generate and apply configurations
   • DBy replacing the need for APIs on network devices
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A YANG module includes a 'grouping' statement that defines a set of related leaves. Another module wants to use these leaves. What is the correct way to reuse the grouping?

   • ACopy the grouping definition into the other module.
   • BUse the 'include' statement to import the grouping.
   • CUse the 'uses' statement to instantiate the grouping in the other module.
   • DUse the 'import' statement to reference the grouping.
   Reveal Solution Discussion Select an answer first