**Educational Resource - Programming Task****Objective:** Develop a program that asks the user for a username and checks if the username exists within a predefined dictionary called `approvedUsers`. If the username is valid, then prompt the user to enter a password.**Instructions:**1. Begin by creating a dictionary named `approvedUsers` where: - Keys represent usernames. - Values represent corresponding passwords. Example: ```python approvedUsers = { "user1": "paswd", "user2": "paswd2", "user3": "paswd3", "user4": "paswd4" } ```2. Write a program that: - Prompts the user to input their username. - Checks if the entered username exists in the `approvedUsers` dictionary. - If the username exists, proceed to ask for the password. - Utilize multiple functions to break down tasks for better modularity and organization.**Hint:** Multiple functions should be utilized to ensure the program is well-structured and concise.**Key Concepts:**- Dictionary operations- User input handling- Conditional statements- Function creation and usageThis task will enhance your understanding of basic data validation and user authentication techniques in programming.

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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Write a program that will prompt the user for a username and validate that username is in the approvedUsers dictionary before prompting for the password. # approvedUsers = {"user1": "paswd", “user2":"paswd2", “user3": "paswd3", “user4":"paswd4"} # Hint: multiple function should be used