Consider the following code snippet:

class BankAccount:

    interest_rate = 0.05

    total_accounts = 0

    def __init__(self, account_number, balance):

        self.account_number = account_number

        self.balance = balance

        BankAccount.total_accounts += 1

 def deposit(self, amount):

        self.balance += amount

    def withdraw(self, amount):

        if amount <= self.balance:

            self.balance -= amount

        else:

            print("Insufficient funds!")

 @classmethod

    def set_interest_rate(cls, rate):

        cls.interest_rate = rate

account1 = BankAccount("123456", 1000)

account2 = BankAccount("987654", 500)

account1.deposit(500)

account2.withdraw(200)

 print(account1.balance)

print(account2.balance)

print(BankAccount.interest_rate)

print(BankAccount.total_accounts)

What will be the output of the code snippet?

You are developing a Python application that needs to implement a client-server architecture for real-time communication between multiple clients and a central server. The clients should be able to send messages to each other through the server. Which of the following network programming concepts would be most appropriate for achieving this requirement?

You are developing a Python application that needs to communicate with a web API to retrieve data. The API requires authentication using an API key. Which of the following HTTP header fields should be used to include the API key in the request?

Complete the following sentence.

PEP is...