What is a benefit of data modeling languages like YANG?

Question

Options

• AThey enable programmers to change or write their own application within the device operating
• BThey create more secure and efficient SNMP OIDs.
• CThey make the CLI simpler and more efficient.
• DThey provide a standardized data structure, which results in configuration scalability and

• A
  8% (3)
• B
  3% (1)
• C
  3% (1)
• D
  87% (34)

Explanation

YANG Data Modeling Language Explanation

YANG (Yet Another Next Generation) is a data modeling language used with NETCONF and RESTCONF that defines a standardized, hierarchical structure for network device data, making configurations portable, predictable, and scalable across multiple vendors and platforms - this is exactly what option D describes.

Why the distractors are wrong:

• Option A is incorrect because YANG is not a programming language for writing device applications; it models data, not application logic
• Option B is incorrect because YANG is unrelated to SNMP OIDs - it operates independently of SNMP and does not enhance or create OIDs
• Option C is incorrect because YANG actually works alongside programmatic interfaces (NETCONF/RESTCONF), not the CLI, and doesn't simplify CLI operations

Memory Tip: Think of YANG as a universal blueprint - just like building blueprints follow standard formats so any contractor can read them, YANG provides a standard data structure so any network management system can communicate with any device. The key word to remember is "standardized" → which leads directly to scalability.

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