JN0-223 Dumps with Practice Exam Questions Answers

Python lists have the following characteristics:

Modifiable Data (A): Lists are mutable, meaning you can change, add, or remove elements after the list has been created.

Sequenced and Indexed (B): Lists maintain the order of their elements and are indexed starting from 0. This means you can access elements by their position in the list.

Option C is incorrectbecause lists are mutable, allowing modifications.Option D is incorrectbecause lists are indeed sequenced and indexed, unlike dictionaries.

Python Official Documentation: Covers the properties of lists, including mutability and indexing.

Python Data Structures Guide: Explains list operations and how to manipulate them.

References:

In JSON (JavaScript Object Notation), the two primary data structures are:

Objects:These are collections of key-value pairs, where each key is a string, and the value can be a string, number, array, boolean, or another object. In Python, this structure is analogous to a dictionary.

Arrays:These are ordered lists of values, where each value can be of any data type, including another array or object. In Python, this structure is similar to a list.

Option A (tuples)andOption D (dictionaries)refer to Python-specific data structures and are not directly used in JSON.

Supporting References:

JSON Documentation and Tutorials:JSON objects and arrays are the standard data structures used in this format, as described in many tutorials and the official JSON documentation.

Python follows a specific execution flow when a script is run:

The code is interpreted:Python is an interpreted language, meaning that the Python interpreter reads the code line by line. When a Python script is executed, the interpreter first reads the source code.

The code is translated to bytecode:After interpreting the source code, Python translates it intobytecode. Bytecode is an intermediate representation of the source code that is portable and efficient for execution by the Python Virtual Machine (PVM).

The bytecode is executed in runtime:Finally, thePython Virtual Machine (PVM)executes the bytecode. The PVM is a part of the Python runtime environment, responsible for interpreting the bytecode into machine-specific instructions for execution.

Hence, the correct sequence is:interpreted → translated to bytecode → bytecode executed in runtime.

Why the Other Options Are Incorrect:

Options A, C, and D present an incorrect order of the script execution process, especially in how bytecode is generated and executed.

References:

Python’s documentation on the interpreter and its execution model explains this standard process.