Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 1044

What is a characteristic of YANG?

Answer options

• A. It is a Cisco proprietary language that models NETCONF data.
• B. It allows model developers to create custom data types.
• C. It structures data in an object-oriented fashion to promote model reuse.
• D. It provides loops and conditionals to control flow within models.

Correct answer: B

Explanation

The correct answer, B, is accurate because YANG is designed to allow developers to create custom data types, which is essential for modeling in a flexible manner. Options A, C, and D are incorrect as A mischaracterizes YANG as proprietary, C describes an object-oriented structure that YANG does not primarily focus on, and D incorrectly suggests that YANG supports flow control constructs like loops and conditionals.