An engineer needs to reference a deeply nested value in a JSON object. Which element enables this?

Question

Options

• ADot-notation context paths
• BList filtering
• CField normalization
• DPre-processing script

• A
  89% (16)
• B
  6% (1)
• D
  6% (1)

Explanation

Dot-notation context paths (A) allow you to traverse nested JSON structures by chaining keys with dots - for example, user.address.city - making it straightforward to reference a value at any depth without manual parsing. List filtering (B) is used to narrow down array elements based on conditions, not to navigate object nesting. Field normalization (C) refers to standardizing or restructuring field formats, which has nothing to do with accessing nested values. A pre-processing script (D) might manipulate data before it's used, but it's not an addressing mechanism for referencing specific nested values.

Memory tip: Think of dot-notation as a "path" through a building - each dot opens the next door deeper into the structure, taking you exactly where you need to go.

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