Top 100 Questions with Answers on AWS(Amazon Web Services) Topic-Wise

 

Top 100 Questions with Answers on AWS(Amazon Web Services) Topic-Wise

 

General AWS Knowledge:

1. What is AWS? AWS (Amazon Web Services) is a cloud computing platform that offers a variety of cloud services like computing power, storage, and databases.
2. What is the AWS Free Tier? The AWS Free Tier provides limited usage of AWS services at no cost, allowing users to explore and try out AWS offerings.
3. What is an Availability Zone in AWS? An Availability Zone is a physically isolated data center within an AWS region that has redundant power, networking, and cooling, providing high availability and fault tolerance.
4. What is an AWS Region? An AWS Region is a geographically distinct area that contains multiple Availability Zones. Each Region is isolated and independent, allowing you to deploy resources in different geographic locations for redundancy and low latency.
5. What is Amazon S3 used for? Amazon S3 (Simple Storage Service) is an object storage service that allows you to store and retrieve large amounts of data, such as files and backups, with high durability and scalability.

Compute Services:

6. What is Amazon EC2? Amazon Elastic Compute Cloud (EC2) provides scalable virtual servers (instances) in the cloud, allowing you to run applications and workloads.

7. What is AWS Lambda? AWS Lambda is a serverless compute service that lets you run code in response to events, without provisioning or managing servers.
8. What is Amazon ECS? Amazon Elastic Container Service (ECS) is a container orchestration service for Docker containers, making it easy to manage, deploy, and scale containerized applications.

Networking:

9. What is Amazon VPC? Amazon Virtual Private Cloud (VPC) lets you create a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network.

10. What is an Elastic Load Balancer (ELB)? Elastic Load Balancers distribute incoming traffic across multiple Amazon EC2 instances to ensure high availability and fault tolerance.
11. What is AWS Direct Connect? AWS Direct Connect provides dedicated network connections from your on-premises data centers to AWS, improving performance and reducing data transfer costs.

Storage Services:

 12. What is Amazon RDS? Amazon Relational Database Service (RDS) is a managed database service that simplifies database setup, operation, and scaling.

13. What is Amazon DynamoDB? Amazon DynamoDB is a managed NoSQL database service that provides fast and flexible storage for applications with single-digit millisecond latency.
14. What is Amazon EBS? Amazon Elastic Block Store (EBS) provides block-level storage volumes that can be attached to Amazon EC2 instances, allowing data persistence.

Security:

 15. What is AWS IAM? AWS Identity and Access Management (IAM) enables you to manage users, groups, and permissions, controlling who can access your AWS resources.

16. What is AWS CloudTrail? AWS CloudTrail records API calls and events across your AWS account, providing visibility into user and resource activity.
17. What is AWS KMS? AWS Key Management Service (KMS) is a managed service that allows you to create and control encryption keys used to protect your data.

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18. What is Amazon Cognito? Amazon Cognito is a service that enables you to add user sign-up, sign-in, and access control to your web and mobile apps.

19. What is AWS WAF? AWS Web Application Firewall (WAF) helps protect your web applications from common web exploits by allowing you to create rules that block or allow traffic based on conditions.

Compute Services:

20. What is Amazon EMR? Amazon Elastic MapReduce (EMR) is a cloud-native big data platform that simplifies processing and analyzing large datasets using popular frameworks like Apache Hadoop and Spark.

21. What is AWS Elastic Beanstalk? AWS Elastic Beanstalk makes it easy to deploy and manage web applications, handling the deployment details and infrastructure management for you.

Databases:

 22. What is Amazon Aurora? Amazon Aurora is a fully managed relational database engine that's compatible with MySQL and PostgreSQL, designed for high performance and availability.

23. What is Amazon Redshift? Amazon Redshift is a fully managed data warehousing service that enables you to analyze large datasets with high performance and scalability.

Serverless:

24. What is Amazon API Gateway? Amazon API Gateway allows you to create and manage APIs for your applications, enabling you to expose endpoints that connect to backend services.

25. What is Amazon Step Functions? Amazon Step Functions is a serverless workflow service that lets you coordinate multiple AWS services into serverless workflows.

Analytics:

26. What is Amazon Athena? Amazon Athena is an interactive query service that lets you analyze data in Amazon S3 using SQL without the need to set up or manage servers.

27. What is Amazon QuickSight? Amazon QuickSight is a business intelligence tool that allows you to create visualizations and interactive dashboards to analyze data.

Machine Learning:

28. What is Amazon SageMaker? Amazon SageMaker is a fully managed machine learning service that enables you to build, train, and deploy machine learning models at scale.

29. What is AWS DeepRacer? AWS DeepRacer is a fully autonomous 1/18th scale race car designed to help developers learn about reinforcement learning and experiment with autonomous driving.

Migration:

30. What is AWS Snowball? AWS Snowball is a service that allows you to physically transfer large amounts of data to and from AWS using secure devices.

31. What is AWS Database Migration Service? AWS Database Migration Service helps you migrate databases to AWS easily and securely.

Storage Services:

 32. What is Amazon S3 Glacier? Amazon S3 Glacier is a low-cost storage service for data archiving and long-term backup, designed for infrequently accessed data.

33. What is Amazon EFS? Amazon Elastic File System (EFS) provides scalable and fully managed file storage for use with Amazon EC2 instances.

Serverless:

 34. What is AWS Step Functions? AWS Step Functions is a serverless orchestration service that lets you coordinate multiple AWS services into workflows or state machines.

35. What is Amazon EventBridge? Amazon EventBridge is a serverless event bus that makes it easy to connect different applications using events.

Security:

36. What is AWS Security Groups? AWS Security Groups act as virtual firewalls for your instances, controlling inbound and outbound traffic based on rules.

37. What is AWS Shield? AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS.

Networking:

38. What is Amazon Route 53? Amazon Route 53 is a scalable and highly available domain name system (DNS) web service that routes end-user requests to endpoints.

DevOps:

39. What is AWS CloudFormation? AWS CloudFormation allows you to create and manage infrastructure as code using templates, making it easier to provision and update resources.

40. What is AWS CodeDeploy? AWS CodeDeploy automates code deployments to various compute services, ensuring your applications are released reliably and quickly.

IoT:

 41. What is AWS IoT Core? AWS IoT Core is a managed cloud service that connects Internet of Things (IoT) devices to the AWS cloud, enabling secure communication and data processing.

Containers:

 42. What is Amazon EKS? Amazon Elastic Kubernetes Service (EKS) is a managed Kubernetes service that simplifies the deployment, management, and scaling of containerized applications using Kubernetes.

Monitoring and Logging:

43. What is Amazon CloudWatch? Amazon CloudWatch monitors resources and applications in real-time, providing insights through metrics, logs, and alarms.

Migration:

 44. What is AWS Server Migration Service? AWS Server Migration Service helps migrate on-premises workloads to AWS by automating the process of replicating and launching VMs.

Machine Learning: 45. What is Amazon Polly? Amazon Polly is a text-to-speech service that converts text into lifelike speech, enabling applications to speak in a natural and engaging way.

46. What is Amazon Rekognition? Amazon Rekognition is a deep learning-based image and video analysis service that can identify objects, people, text, scenes, and more in your media.

Database: 47. What is Amazon Neptune? Amazon Neptune is a fully managed graph database service that allows you to build and run applications that work with highly connected data.

48. What is Amazon DocumentDB? Amazon DocumentDB is a fully managed document database service designed to be compatible with MongoDB, providing scalability, performance, and availability.

Serverless:

 49. What is AWS Lambda Edge? AWS Lambda@Edge lets you run code in response to CloudFront events, allowing you to customize content delivery and enhance user experiences.

Security:

 50. What is Amazon GuardDuty? Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior in your AWS accounts.

Networking:

51. What is AWS Transit Gateway? AWS Transit Gateway simplifies network connectivity by allowing you to connect multiple VPCs and on-premises networks through a central hub.

Analytics:

 52. What is AWS Glue? AWS Glue is a fully managed extract, transform, and load (ETL) service that makes it easy to prepare and load data for analytics.

DevOps:

 53. What is AWS CodePipeline? AWS CodePipeline is a continuous integration and continuous delivery (CI/CD) service that automates the building, testing, and deployment of code changes.

54. What is AWS CodeCommit? AWS CodeCommit is a secure and scalable version control service that enables teams to host secure Git repositories.

Storage Services:

55. What is Amazon FSx? Amazon FSx provides fully managed file systems for Windows and Lustre workloads, simplifying file storage and management.

IoT:

 56. What is AWS IoT Greengrass? AWS IoT Greengrass extends AWS functionality to edge devices, enabling local processing and management of IoT devices.

Migration:

 57. What is AWS Application Discovery Service? AWS Application Discovery Service helps you plan application migration by identifying on-premises applications, their dependencies, and their performance.

Machine Learning:

58. What is Amazon SageMaker Ground Truth? Amazon SageMaker Ground Truth is a data labeling service that helps you build highly accurate training datasets for machine learning.

59. What is Amazon Personalize? Amazon Personalize is a machine learning service that creates individualized recommendations for users based on their behavior and preferences.

Security:

60. What is AWS Secrets Manager? AWS Secrets Manager helps you securely store and manage sensitive information like passwords, API keys, and other credentials.

Networking:

61. What is Amazon CloudFront? Amazon CloudFront is a content delivery network (CDN) that distributes content globally with low latency and high transfer speeds.

Analytics:

 62. What is Amazon Kinesis? Amazon Kinesis offers real-time data streaming and processing capabilities, allowing you to ingest, process, and analyze streaming data.

DevOps:

63. What is AWS CodeBuild? AWS CodeBuild is a fully managed continuous integration service that compiles and tests your code automatically whenever you commit changes.

64. What is AWS CodeArtifact? AWS CodeArtifact is a package management service that helps you securely store, publish, and share software packages.

Storage Services:

 65. What is Amazon Elastic File System (EFS) Infrequent Access? Amazon EFS Infrequent Access is a storage class that offers a lower-cost option for storing infrequently accessed file data within Amazon EFS.

IoT:

 66. What is AWS IoT Events? AWS IoT Events is a service that detects and responds to changes in IoT device data, allowing you to build event-driven applications.

Serverless:

67. What is AWS App Runner? AWS App Runner is a service that automatically builds, deploys, and scales containerized web applications quickly.

Database:

68. What is Amazon QLDB? Amazon Quantum Ledger Database (QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log.

Migration:

 69. What is AWS DataSync? AWS DataSync is a data transfer service that simplifies moving large amounts of data between on-premises storage and AWS.

Management and Governance:

70. What is AWS Systems Manager? AWS Systems Manager helps you manage and automate operational tasks across your AWS resources, enhancing efficiency and security.:

Serverless:

71. What is AWS AppSync? AWS AppSync is a managed service that enables you to develop GraphQL APIs by connecting to various data sources like DynamoDB, Lambda, or HTTP.

Machine Learning:

 72. What is Amazon Textract? Amazon Textract is a service that automatically extracts text, forms, and tables from scanned documents, making it easy to process structured content.

73. What is Amazon Forecast? Amazon Forecast is a fully managed forecasting service that uses machine learning to generate accurate forecasts for time-series data.

Storage Services:

74. What is AWS Snowball Edge? AWS Snowball Edge is a device that allows you to move large amounts of data physically while providing local computing capabilities.

Networking:

75. What is AWS PrivateLink? AWS PrivateLink allows you to access services over a private connection, enhancing security and minimizing exposure to the public internet.

Security:

76. What is Amazon Macie? Amazon Macie is a security service that uses machine learning to automatically discover, classify, and protect sensitive data in AWS.

Analytics:

 77. What is AWS Data Pipeline? AWS Data Pipeline is a web service that enables you to reliably move data between different AWS services and on-premises data sources.

Migration:

 78. What is AWS Application Discovery Service? AWS Application Discovery Service helps businesses plan migration projects by automatically identifying applications running in on-premises environments.

IoT:

79. What is AWS IoT SiteWise? AWS IoT SiteWise is a service that collects, structures, and analyzes industrial data from devices and equipment.

Compute Services:

 80. What is Amazon Lightsail? Amazon Lightsail provides simplified virtual private servers (VPS) with a straightforward pricing model, designed for beginners and small-scale applications.

DevOps:

81. What is AWS X-Ray? AWS X-Ray is a distributed tracing service that helps you analyze and debug performance issues in your applications.

Management and Governance:

 82. What is AWS Organizations? AWS Organizations helps you centrally manage and govern multiple AWS accounts, making it easier to control access, compliance, and billing.

Machine Learning:

 83. What is Amazon Comprehend? Amazon Comprehend is a natural language processing service that extracts insights from text, allowing you to analyze sentiment, entities, and more.

Storage Services:

84. What is Amazon Elastic Cache? Amazon ElastiCache is a fully managed in-memory caching service that supports popular caching engines like Redis and Memcached.

Security:

 85. What is AWS WAF Bot Control? AWS WAF Bot Control helps protect your web applications from bot traffic and automated attacks, allowing you to set rules to allow, block, or monitor bots.

Networking:

 86. What is Amazon Virtual Private Cloud (VPC) Peering? Amazon VPC Peering allows you to connect VPCs in different accounts and regions using private IP addresses, enabling resource sharing and communication.

Compute Services:

87. What is AWS Fargate? AWS Fargate is a serverless compute engine for containers that lets you run containers without managing the underlying infrastructure.

Analytics:

 88. What is Amazon QuickSight Q? Amazon QuickSight Q is a machine learning-powered feature that lets you ask natural language questions to analyze your data and get insights.

Management and Governance:

 89. What is AWS Config? AWS Config helps you assess, audit, and evaluate the configurations of your AWS resources, enabling compliance and security checks.

IoT:

 90. What is AWS IoT Analytics? AWS IoT Analytics is a service that allows you to process, store, and analyze IoT data, providing insights and visualizations.

Migration:

 91. What is AWS Database Migration Service (DMS)? AWS Database Migration Service helps you migrate databases to AWS by providing a reliable and seamless way to move data.

DevOps:

 92. What is AWS CodeStar? AWS CodeStar is a fully managed platform that helps you develop, build, and deploy applications on AWS by providing an integrated CI/CD pipeline.

Storage Services:

 93. What is Amazon S3 Select? Amazon S3 Select allows you to retrieve specific data from large objects stored in Amazon S3, reducing data transfer and improving performance.

Machine Learning:

 94. What is Amazon Lex? Amazon Lex is a service for building conversational interfaces, such as chatbots and voice assistants, using natural language understanding capabilities.

Security:

 95. What is AWS Identity Store? AWS Identity Store provides a managed service to simplify user identity management across AWS services and applications.

Networking:

96. What is Amazon VPC Endpoints? Amazon VPC Endpoints enable private connectivity between your VPC and supported AWS services, avoiding the need for public internet access.

Compute Services:

 97. What is AWS Outposts? AWS Outposts brings native AWS services, infrastructure, and operating models to your on-premises environment for a consistent hybrid experience.

Analytics:

 98. What is Amazon EMR on EKS? Amazon EMR on EKS enables you to run Apache Spark and Apache Hive on Amazon Elastic Kubernetes Service, providing managed big data processing capabilities.

Management and Governance:

99. What is AWS CloudTrail Insights? AWS CloudTrail Insights helps you identify unusual activity in your AWS accounts by applying machine learning algorithms to CloudTrail data.

IoT:

 100. What is AWS IoT 1-Click? AWS IoT 1-Click is a service that simplifies the process of triggering AWS Lambda functions from IoT devices with a single click.