Aws Experienced Interview Questions

cloud computing

Aws Experienced Interview Questions

Preparing for AWS Experienced Interview: Common Questions

Aws Experienced Interview Questions

AWS experienced interview questions often focus on candidates' hands-on experience with AWS services, understanding of key architectural concepts, troubleshooting skills, and best practices for implementing and optimizing solutions in the cloud environment. Questions may cover topics such as designing fault-tolerant architectures, implementing security controls, optimizing performance, managing costs, and automating tasks using various AWS services and tools. Candidates are typically expected to demonstrate proficiency in using AWS services like EC2, S3, IAM, VPC, RDS, and Cloudformation, as well as understanding of networking, security, monitoring, and scalability considerations in the cloud. Additionally, they may be asked scenario-based questions to assess their problem-solving skills and ability to apply their knowledge to real-world challenges. Preparring for such interviews involve hands-on experience, reviewing AWS documentation, practicing with sample scenarios, and being able to explain and justify decisions made in a solution design.

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1 - Explain the difference between EC2 and S3.

EC2 (Elastic Compute Cloud) is a cloud based service that provides resizable compute capacity in the form of virtual servers, allowing users to easily run applications. S3 (Simple Storage Service), on the other hand, is a storage service that allows users to store and retrieve data at any time. EC2 is used for computing needs like running applications or processing data, while S3 is used for storing data such as files and documents.

2) What is IAM and how is it used in AWS?

IAM (Identity and Access Management) is a service that helps manage access to AWS services and resources securely. It allows users to control who can access what resources in their AWS account, by creating and managing users, groups, and roles. IAM helps ensure that only authorized individuals and systems have access to AWS resources.

3) What is Auto Scaling and how does it work?

Auto Scaling is a feature in AWS that automatically adjusts the number of EC2 instances in a particular Auto Scaling group to accommodate changes in demand. It helps maintain optimal performance and cost efficiency by adding or removing instances based on predefined scaling policies. This ensures that the application can handle varying levels of traffic without manual intervention.

4) Explain the difference between public, private, and elastic IP addresses in AWS.

A public IP address is a globally unique address that allows EC2 instances to communicate with the internet. A private IP address is used for communication within a VPC (Virtual Private Cloud) and is not reachable from the internet. An elastic IP address is a static IP address that can be assigned to an EC2 instance and remapped to another instance in case of instance failure, providing a consistent endpoint for applications.

5) What is CloudFormation and how does it work?

CloudFormation is a service in AWS that allows users to define and provision AWS infrastructure as code using templates. These templates are written in JSON or YAML format and can be used to create a collection of related AWS resources, known as a stack. CloudFormation simplifies the process of deploying and managing complex infrastructure in a repeatable and automated manner.


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