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Python Set Operations Explained: From Theory to Real-Time Applications

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A  set  in Python is an unordered collection of unique elements. It is useful when storing distinct values and performing operations like union, intersection, or difference. Real-Time Example: Removing Duplicate Customer Emails in a Marketing Campaign Imagine you are working on an email marketing campaign for your company. You have a list of customer emails, but some are duplicated. Using a set , you can remove duplicates efficiently before sending emails. Code Example: # List of customer emails (some duplicates) customer_emails = [ "alice@example.com" , "bob@example.com" , "charlie@example.com" , "alice@example.com" , "david@example.com" , "bob@example.com" ] # Convert list to a set to remove duplicates unique_emails = set (customer_emails) # Convert back to a list (if needed) unique_email_list = list (unique_emails) # Print the unique emails print ( "Unique customer emails:" , unique_email_list) Ou...
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9 Top AWS Services a Quick List

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In this post, I have explained the top AWS services list. These services are useful to read before your next interview. knowing this list is a must for all cloud-computing engineers. AWS provides various services. This post gives a clear understanding of AWS's top services. 

AWS Books

Not only for traditional services, but it also offers services for Mobile IoS and Android Os. Aws Service catalog helps organizations to manage their IT services.


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AWS

List of Top AWS Services Quick List


These 9 Services of AWS are popular. I have explained each service to understand quickly.

  1. EC2
  2. Lambda
  3. S3
  4. DynamoDB
  5. IAM
  6. Amazon Cognito
  7. Device Farm
  8. Mobile analytics
  9. SNS

1. AWS EC2 Instance

  • EC2: Amazon Elastic Compute Cloud (EC2) provides secure, scalable, on-demand hardware virtualization in the cloud.
  • Using Amazon EC2 eliminates the need to invest in server hardware upfront so that users can focus on, develop, and deploy applications faster. 
  • EC2 instances come in various hardware configurations and include an operating system.

2. Lambda Function in AWS

  • AWS Lambda lets users run snippets of code without provisioning infrastructure. 
  • This service is billed on a pay-as-you-go model, with users only paying for the execution time of their lambda code. 
  • There is no charge when the code is not running. Lambda code can be set up to automatically trigger from other AWS services or called directly from any web or mobile app.

3. Aws S3 Console

Amazon Simple Storage Service is a secure, durable, and scalable cloud-based object-store. Using this service, you can store your files in the cloud.

4. DynamoDB

Amazon DynamoDB is a high-performance, scalable cloud-based NoSQL database service.

5. Aws IAM Role

Amazon Identity and Access Management (IAM) lets you securely control who can access your AWS resources, what resources they can access, and what they can do with these resources.

6. Amazon Cognito Review

  • Amazon Cognito allows you to create identity profiles for your app's users and allows them to sign in to the app with their Amazon, Facebook, Twitter, or Google accounts.
  • After users have authenticated from the app, the app is given a token that can be used to access AWS cloud resources securely. 
  • Amazon Cognito also offers a service that allows authenticated users to sync their app data on different devices.

7. Aws Device Farm

  • Amazon Device Farm is an app testing service that allows you to upload your app and run a set of automated tests and a set of real-time tests on physical devices hosted by Amazon.
  • Both Android and iOS apps are supported.

8. Aws Mobile Analytics

  • Amazon Mobile Analytics allows you to collect and visualize app usage data. A set of reports is generated based on the collected data. 
  • You can export the analytics data to other AWS cloud services for further processing.

9. Aws SNS topic

  • Amazon Simple Notification Service (SNS) enables you to send push messages.
  • These messages can be pushed to mobile applications, e-mail inboxes, web servers, and other AWS cloud services.
  • SNS supports various protocols including SMS, e-mail, and HTTP/S.

Summary

A total of nine AWS services absolutely need for every developer working on AWS.


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