350-401 Question #1161: Real Exam Question with Answer & Explanation

Question

What is the purpose of data modeling languages?

Options

• Ato describe a data schema convertible into any data encoding format
• Bto provide a framework to describe data flow patterns in networks
• Cto specify algorithms necessary to decode binary-encoded protocol data units
• Dto translate encoded data for interoperability between different CPU architectures

Explanation

This question asks for the fundamental purpose of data modeling languages in network configuration and management.

Common mistakes.

• B. The primary purpose of data modeling languages is to define data structures, not to provide a framework for describing data flow patterns in networks.
• C. Data modeling languages describe the structure of data, not the algorithms or specifications necessary to decode binary-encoded protocol data units.
• D. Data modeling languages define data schemas for configuration and state, not for translating encoded data for interoperability between different CPU architectures.

Concept tested. Purpose of data modeling languages (e.g., YANG)

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166/b_166_programmability_cfg/introduction_to_programmability.html

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