Cloud Native Applications Interview Questions
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System Design Interview: 300 Questions And Answers
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Cracking Spring Microservices Interviews
This ebook discusses 100 plus real problems and their solutions for microservices architecture based on Spring Boot, Spring Cloud, Cloud Native Applications. It covers core concepts of microservices architecture, various design patterns, interview questions & answers, security in microservices, testing strategies and best practices in distributed system design. Table of Contents: 1. Core concepts related Spring powered microservices architecture 2. Introduction to Spring Boot, Spring Cloud, Cloud Native Applications, Netflix OSS 3. Design Patterns in microservices architecture - API Gateway, Hystrix, etc. 4. 100 plus Interview Questions 5. Security - OAuth2 and JWT 6. Testing Strategies in microservices architecture 7. Best Practices and common pitfalls
AWS Interview Questions and Answers - English
Here are some common AWS interview questions along with their answers: What are AWS? Amazon Web Services (AWS) is a cloud computing platform provided by Amazon.com that offers a wide range of cloud services, including computing power, storage, databases, machine learning, analytics, networking, and more. AWS allows businesses to access and utilize computing resources on-demand, without the need to invest in physical infrastructure. What are the key components of AWS? AWS consists of numerous services and components. Some key components include: Compute: Amazon EC2 (Elastic Compute Cloud), AWS Lambda, AWS Elastic Beanstalk. Storage: Amazon S3 (Simple Storage Service), Amazon EBS (Elastic Block Store), Amazon Glacier. Database: Amazon RDS (Relational Database Service), Amazon DynamoDB, Amazon Redshift. Networking: Amazon VPC (Virtual Private Cloud), Amazon Route 53, AWS Direct Connect. Analytics: Amazon EMR (Elastic MapReduce), Amazon Kinesis, Amazon Athena. Machine Learning: Amazon SageMaker, Amazon Rekognition, Amazon Comprehend. What is the difference between EC2 and Lambda? Amazon EC2 (Elastic Compute Cloud) is a service that provides resizable compute capacity in the cloud. Users can launch virtual servers (instances) with various configurations, including different operating systems, CPU, memory, storage, and networking options. AWS Lambda is a serverless compute service that allows you to run code in response to events without provisioning or managing servers. You upload your code (in the form of functions) to Lambda, and AWS handles the infrastructure automatically, scaling your functions in response to incoming requests or events. What is S3? Amazon S3 (Simple Storage Service) is an object storage service that offers scalable storage for storing and retrieving data on the web. It provides developers with highly durable, secure, and scalable object storage infrastructure at low costs. S3 is commonly used for hosting static websites, storing backup and archival data, and serving as a content delivery network (CDN) for distributing large files. What is VPC? Amazon VPC (Virtual Private Cloud) allows you to provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. You have complete control over your virtual networking environment, including selecting your IP address range, creating subnets, and configuring route tables and network gateways. What is Auto Scaling? Auto Scaling is a feature of AWS that automatically adjusts the number of EC2 instances in a group based on demand or predefined conditions. It helps ensure that you have the right amount of computing capacity to handle varying levels of traffic or workload, while also optimizing costs by scaling in during periods of low demand. What is the difference between RDS and DynamoDB? Amazon RDS (Relational Database Service) is a managed relational database service that makes it easy to set up, operate, and scale relational databases in the cloud. It supports popular database engines such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora. Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. It is designed for applications that require single-digit millisecond latency and can handle large amounts of data with high throughput and low latency. What is CloudFormation? AWS CloudFormation is a service that allows you to provision and manage AWS infrastructure as code. With CloudFormation, you can define templates (JSON or YAML files) that describe the resources and configurations you want, and AWS will automatically create and manage those resources for you. This helps automate the process of deploying and managing infrastructure in a repeatable and consistent manner. Explain IAM in AWS. IAM (Identity and Access Management) is a service that enables you to manage access to AWS resources securely. IAM allows you to create and manage users, groups, roles, and permissions, allowing you to control who can access which resources and what actions they can perform. IAM helps you enforce security best practices and maintain compliance with security policies. What is CloudWatch? Amazon CloudWatch is a monitoring and observability service that provides visibility into your AWS resources and applications. It collects and tracks metrics, logs, and events, allowing you to monitor the performance, health, and operational status of your AWS environment in real-time. CloudWatch provides dashboards, alarms, and automated actions to help you respond to operational issues and optimize resource utilization. These are just a few examples of AWS interview questions you might encounter. Depending on the specific role and requirements, interviewers may also ask about topics such as security, networking, serverless computing, cost management, and more. Make sure to review the AWS documentation and practice hands-on with AWS services to prepare effectively for your interview.