Cisco Certified DevNet Associate (200-901 DEVASC) 2026 – 400 Free Practice Questions to Pass the Exam

The command that writes JSON data from Python objects to a file is `dump()`. This function is part of the `json` module in Python and is designed specifically for serializing Python objects into a JSON-formatted stream, which can then be written to a file.

When using `dump()`, you typically provide it with two arguments: the object you want to serialize and a file object that points to the location where the JSON data will be written. This function effectively converts the Python object into a JSON string and writes it directly to the specified file, allowing for more efficient data handling, especially with larger datasets.

In contrast, other functions in the `json` module serve different purposes. For instance, `load()` reads JSON data from a file and converts it into a Python object, while `loads()` takes a JSON-formatted string and converts it into a Python object. `dumps()`, on the other hand, converts a Python object into a JSON string, but it does not write that string to a file. Each of these functions has a specific use case, but for writing JSON data directly to a file, `dump()` is the appropriate choice.