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AWS Interview Questions and Answers: If you’re preparing for an interview focused on Amazon Web Services (AWS), it’s important to have a solid understanding of the platform’s features and capabilities.
To help you prepare for your AWS interview, we have provided the Top 100 AWS interview questions and answers. Whether you’re a fresher looking to break into the field, or an experienced professional seeking to enhance your knowledge, these AWS Technical Interview Questions can help you gain a deeper understanding and its various features and capabilities.
★★ Latest Technical Interview Questions ★★
AWS Technical Interview Questions
Our collection of Top 100 AWS interview questions and answers is designed to assist both experienced professionals and those new to the AWS programming language. Whether you are a seasoned AWS programmer or just starting with the language, AWS Interview Questions for Freshers can help you prepare for your next interview and increase your chances of success.
Top 100 AWS Interview Questions and Answers
1. What inspired you to pursue a career in AWS?
As an AI language model, I was not inspired to pursue a career in AWS. However, for individuals, there could be various reasons to pursue a career in AWS such as interest in cloud computing, the growing demand for AWS professionals, the vast opportunities offered by AWS, and the potential for career growth.
2. What are the different services offered by AWS?
AWS offers a wide range of services including computing, storage, database, networking, analytics, machine learning, security, management tools, and more.
3. Can you explain what is the role of Elastic Load Balancer in AWS?
Elastic Load Balancer (ELB) is a service that automatically distributes incoming traffic across multiple instances, containers, or IP addresses. It helps to improve the availability and scalability of applications by distributing traffic evenly among the resources.
4. How do you connect multiple sites to a VPC?
5. What is Amazon VPC (Virtual Private Cloud) and how does it work?
Amazon VPC is a service that allows users to create and manage their own isolated virtual network within the AWS cloud. It provides complete control over the virtual networking environment, including a selection of IP address ranges, creation of subnets, and configuration of route tables and network gateways. Users can also connect their VPC to their own data center using a VPN connection or AWS Direct Connect.
6. Can you explain what is Amazon S3 and how is it used?
Amazon S3 (Simple Storage Service) is a highly scalable and durable object storage service. It is used to store and retrieve any amount of data from anywhere on the web. It provides features such as data encryption, versioning, access control, and lifecycle management to help manage data effectively.
7. What is Amazon VPC?
Amazon Virtual Private Cloud (VPC) is a service that offers control over a virtual private cloud. It enables the design of a VPC with control over resource placement, connectivity, and security. Users can add Amazon EC2 and RDS instances as needed, and define communication between VPCs, regions, and availability zones in the cloud.
8. How do you configure an EC2 instance in AWS?
To configure an EC2 instance in AWS, users need to select an Amazon Machine Image (AMI), choose an instance type, configure network settings, and launch the instance. Once launched, users can connect to the instance using SSH or RDP and install applications or services as required.
9. What are the different types of EC2 instances?
There are several types of EC2 instances available in AWS, including General Purpose, Compute Optimized, Memory Optimized, Storage Optimized, and GPU Instances. Each type is optimized for different workloads and requirements.
10. How do you set up a system to monitor website metrics in real time in AWS?
- State changes in Amazon EC2
- Auto-scaling lifecycle events
- Scheduled events
- AWS API calls
- Console sign-in events
11. Can you explain what is Amazon DynamoDB and how it is used?
Amazon DynamoDB is a fast, flexible, and fully managed NoSQL database service. It is used to store and retrieve any amount of data and can handle millions of requests per second. It provides features such as automatic scaling, backup and restore, and encryption at rest to help manage data effectively.
12. What is Amazon RDS (Relational Database Service) and how is it used?
Amazon RDS is a fully managed relational database service that makes it easy to set up, operate, and scale a relational database in the cloud. It supports popular database engines such as MySQL, PostgreSQL, Oracle, and SQL Server, and provides features such as automatic backups, patching, and monitoring to help manage databases effectively.
13. How do you connect multiple sites to a VPC?
The AWS VPN CloudHub allows for secure communication between multiple sites with multiple VPN connections. The following diagram illustrates how various sites can be connected to a VPC:
14. How do you migrate an application from on-premises to AWS?
To migrate an application from on-premises to AWS, users need to assess the application architecture, select an appropriate migration approach, plan the migration, set up the AWS environment, and perform the migration. The migration approach can vary based on the type of application and requirements and can include lift-and-shift, rehosting, re-platforming, refactoring, or rebuilding.
15. How do you ensure security in AWS?
- IAM (Identity and Access Management): AWS Identity and Access Management (IAM) enables you to manage access to AWS services and resources securely. You can create and manage users, groups, and roles, and define their permissions to access AWS resources.
- Encryption: AWS provides encryption options for data at rest and in transit, such as AWS Key Management Service (KMS), Amazon S3 server-side encryption, and AWS Certificate Manager.
- Network security: AWS provides Virtual Private Cloud (VPC) that enables you to launch resources in a logically isolated virtual network. You can control traffic to and from your instances using security groups and network access control lists.
- Monitoring and logging: AWS CloudTrail enables you to log, continuously monitor, and retain account activity related to actions across your AWS infrastructure
16. What is Amazon Lambda and how is it used?
Amazon Lambda is a serverless computing service provided by AWS that enables you to run code in response to events or triggers, without provisioning or managing servers. With AWS Lambda, you can write and run code without worrying about the underlying infrastructure, such as servers, operating systems, and scaling. You can use Lambda to build serverless applications, event-driven workflows, or as a backend for web or mobile applications.
17. What is the difference between Amazon S3 and EBS?
| Amazon S3 (Simple Storage Service) | Amazon EBS (Elastic Block Store) |
|---|---|
| Object-based storage service | Block-based storage service |
| Useful for storing and retrieving files | Useful for storing data on EC2 instances |
| Provides storage capacity on demand | Provides persistent block-level storage volumes |
| Scales infinitely | Limited scalability |
| Designed for data that is frequently accessed | Designed for data that is less frequently accessed |
18. How do you monitor AWS resources?
AWS provides various monitoring and logging services that allow you to monitor and troubleshoot your AWS infrastructure. Some of the ways to monitor AWS resources are:
- Amazon CloudWatch: A monitoring and observability service that enables you to collect, monitor, and analyze metrics, logs, and alarms for AWS resources and applications.
- AWS Config: A service that enables you to assess, audit, and evaluate the configuration of your AWS resources continuously.
- AWS CloudTrail: A service that records all API calls made in your AWS account and delivers log files to an Amazon S3 bucket.
- Amazon CloudFormation: A service that enables you to create and manage AWS infrastructure as code, providing an audit trail of changes to your resources over time.
19. Can you explain what is Amazon CloudFront and how is it used?
Amazon CloudFront is a content delivery network (CDN) service provided by AWS that enables you to distribute content globally with low latency and high data transfer speeds. CloudFront caches and delivers static and dynamic web content, such as HTML, CSS, JavaScript, images, and videos, from AWS or your origin servers to end-users, improving their experience and reducing the load on your origin servers.
20. Can you explain what is Amazon EKS (Elastic Kubernetes Service) and how it is used?
Amazon EKS is a managed Kubernetes service that simplifies the deployment, management, and scaling of containerized applications using Kubernetes. It provides a highly available and secure environment for running containerized applications and can integrate with other AWS services such as Elastic Load Balancing and Amazon VPC.
21. How do you deploy an application in AWS?
To deploy an application in AWS, users can choose from several deployment options such as EC2 instances, Elastic Beanstalk, Lambda functions, or containers using services such as Amazon ECS or EKS. The deployment process can vary based on the selected option but typically involves creating and configuring the necessary resources, uploading the application code or image, and configuring the deployment settings.
22. What is the difference between Amazon EC2 and Lambda?
| Amazon EC2 (Elastic Compute Cloud) | AWS Lambda |
|---|---|
| Offers scalable computing capacity in the cloud | Offers compute service that runs your code in response to events |
| Requires you to manage the server infrastructure | Serverless platform that manages the infrastructure for you |
| You pay for the instances you launch | You pay for the number of requests and the time your code runs |
| Provides complete control over the environment | No control over the underlying infrastructure |
23. What is Amazon Elastic Beanstalk and how is it used?
Amazon Elastic Beanstalk is a fully managed service that makes it easy to deploy and manage web applications and services. It automatically handles the deployment, scaling, and management of the underlying infrastructure, and supports popular programming languages and frameworks such as Java, .NET, Node.js, and Python.
24. Can you explain what is Amazon Redshift and how it is used?
Amazon Redshift is a fast, fully managed, petabyte-scale data warehouse service that makes it easy to analyze large amounts of data using SQL and business intelligence tools. It is used to store and analyze structured and semi-structured data from various sources and can be integrated with other AWS services such as Amazon S3 and Kinesis.
25. How do you manage access control in AWS?
Access control in AWS can be managed using various services such as AWS Identity and Access Management (IAM), Amazon VPC, and security groups. IAM provides fine-grained control over user and group permissions, while VPC and security groups allow users to control network traffic and access to resources.
26. What is the difference between Amazon RDS and DynamoDB?
| Amazon RDS (Relational Database Service) | Amazon DynamoDB |
|---|---|
| A managed relational database service | A managed NoSQL database service |
| Supports popular database engines such as MySQL, PostgreSQL, and Oracle | Uses a proprietary database engine |
| Requires you to provision and manage the underlying hardware and software | Does not require provisioning or management of the underlying hardware or software |
| Scalability is limited by the size of the instance | Offers automatic and virtually unlimited scalability |
27. What is Amazon Kinesis and how is it used?
Amazon Kinesis is a managed service that makes it easy to collect, process, and analyze real-time streaming data such as video, audio, and IoT data. It provides features such as data encryption, automatic scaling, and integration with other AWS services such as S3 and Lambda.
28. Can you explain what is AWS CloudFormation and how it is used?
AWS CloudFormation is a service that allows users to model and provision AWS resources using templates. It provides a way to automate the deployment of infrastructure as code and supports various AWS services such as EC2, S3, and RDS.
29. How do you configure Amazon SNS (Simple Notification Service)?
To configure Amazon SNS, users need to create a topic, add subscribers, and configure the notification settings. SNS supports various notification protocols such as email, SMS, HTTP/S, and mobile push notifications.
30. What is Amazon EMR (Elastic MapReduce) and how is it used?
Amazon EMR is a managed big data processing service that allows users to easily run popular open-source frameworks such as Apache Hadoop, Spark, and Presto. It provides features such as automatic scaling, security, and integration with other AWS services such as S3 and Redshift.
31. Can you explain what is AWS CodePipeline and how it is used?
AWS CodePipeline is a fully managed continuous delivery service that automates the building, testing, and deployment of applications. It integrates with various AWS services such as CodeCommit, CodeBuild, and CodeDeploy, and supports various deployment options such as EC2 instances, Lambda functions, and containers.
32. What is the difference between Amazon EKS and ECS?
| Amazon EKS (Elastic Kubernetes Service) | Amazon ECS (Elastic Container Service) |
|---|---|
| Managed service for running Kubernetes on AWS | Managed service for deploying containers on AWS |
| Offers native integration with Kubernetes ecosystem | Offers integration with Amazon services |
| Offers the ability to deploy Kubernetes clusters across multiple availability zones | Limited to deploying containers on a single EC2 instance |
| Provides the ability to use Kubernetes operators | Does not support Kubernetes operators |
33. What is Amazon Aurora and how is it used?
Amazon Aurora is a relational database engine developed by Amazon Web Services (AWS). It’s compatible with MySQL and PostgreSQL, providing high performance, scalability, and availability while minimizing downtime for database maintenance tasks.
34. How do you configure Amazon SES (Simple Email Service)?
To configure Amazon SES, you need to create an SES account and verify your email addresses or domains. Then, you can configure your SES settings, such as email sending limits, DKIM authentication, and bounce and complaint handling. You can also integrate SES with other AWS services, like Amazon S3 or Lambda, for additional functionality.
35. Can you explain what is Amazon MQ and how it is used?
Amazon MQ is a managed message broker service that supports popular messaging protocols like MQTT, AMQP, and STOMP. It allows you to decouple your applications and microservices, and scale your messaging infrastructure without worrying about server maintenance.
36. How do you optimize performance in AWS?
To optimize performance in AWS, you can implement various strategies like horizontal scaling, vertical scaling, caching, load balancing, auto-scaling, and optimizing your database queries and indexing. You can also use AWS services like CloudFront, Lambda, and RDS Performance Insights to monitor and improve performance.
37. What is the difference between Amazon CloudFront and Route 53?
| Amazon CloudFront | Amazon Route 53 |
|---|---|
| A content delivery network (CDN) service that speeds up the delivery of static and dynamic web content | A scalable Domain Name System (DNS) service that translates domain names into IP addresses |
| Distributes content to edge locations around the world | Routes internet traffic to the appropriate resources |
| Provides fast, reliable, and secure content delivery | Helps to route end users to the closest available resources |
| Uses a global network of edge locations | Offers health checking and failover functionality for high availability |
38. What is Amazon Elasticsearch and how is it used?
Amazon Elasticsearch is a managed search and analytics engine based on the open-source Elasticsearch engine. It allows you to index and search large volumes of data in real-time, and perform complex analytics queries on your data.
39. Can you explain what is AWS Step Functions and how it is used?
AWS Step Functions is a serverless workflow service that allows you to coordinate and orchestrate your AWS services and applications using visual workflows. You can create state machines that define the sequence of steps, conditions, and branching logic for your workflows, and integrate with Lambda, SNS, SQS, and other AWS services.
40. How do you configure Amazon GuardDuty?
To configure Amazon GuardDuty, you need to enable the service and select the regions where you want to monitor. You can also configure your GuardDuty settings, such as email notifications, threat intelligence, and member accounts. GuardDuty will automatically detect and alert you on potential security threats and vulnerabilities in your AWS environment
41. What is the difference between Amazon SNS and SQS?
| Amazon SNS (Simple Notification Service) | Amazon SQS (Simple Queue Service) |
|---|---|
| A messaging service that sends messages to multiple subscribers | A messaging service that decouples and scales distributed systems and microservices |
| Uses a push mechanism to deliver messages | Uses a pull mechanism to retrieve messages |
| Messages are delivered to multiple subscribers simultaneously | Messages are delivered to a single consumer at a time |
| Supports a variety of protocols such as HTTP, email, SMS, and mobile push | Only supports the standard queue and the FIFO queue |
42. What is Amazon Neptune and how is it used?
Amazon Neptune is a managed graph database service that allows you to store and query large-scale, highly connected datasets like social networks, recommendation engines, and knowledge graphs. It supports popular graph query languages like SPARQL and Gremlin and provides high availability, durability, and security.
43. How do you configure Amazon CloudTrail?To configure Amazon CloudTrail, you need to enable the service and select the regions and S3 bucket where you want to store your log files. You can also configure your CloudTrail settings, such as data events, trails, and insights. CloudTrail will automatically record and log all API calls and events in your AWS account, and allow you to monitor and audit your AWS environment.
44. Can you explain what is Amazon WorkSpaces and how it is used?
Amazon WorkSpaces is a managed desktop as a service (DaaS) that allows you to provision and manage virtual Windows or Linux desktops in the cloud. It provides a secure and scalable solution for remote work, BYOD, and disaster recovery scenarios, and allows you to easily manage user access and software updates.
45. What is Amazon DocumentDB and how is it used
Amazon DocumentDB is a managed NoSQL database service that provides compatibility with MongoDB workloads. It allows you to store and query JSON documents and provides high performance, scalability, and availability. You can also use features like MongoDB APIs, automatic backups, and global clusters to enhance your database functionality.
46. What is the difference between Amazon CloudWatch and CloudTrail?
| Amazon CloudWatch | Amazon CloudTrail |
|---|---|
| A monitoring service that provides metrics on AWS resources and applications | A logging service that records API calls and events for AWS resources |
| Provides real-time monitoring of AWS resources | Provides audit history and governance compliance |
| Allows you to create alarms to monitor resource utilization | Allows you to track user activity and API usage |
| Offers basic free tier | No free tier, but offers pay-as-you-go pricing |
47. How do you configure Amazon API Gateway?
To configure Amazon API Gateway, you need to first create an API in the API Gateway console. Once the API is created, you can define API methods and integrate them with backend services. You can also set up API Gateway to handle authentication and authorization for your API using AWS Cognito or other third-party providers.
48. Can you explain what is Amazon ElastiCache and how it is used?
Amazon ElastiCache is a managed, in-memory caching service that makes it easy to deploy and manage distributed caches in the cloud. It supports two popular caching engines: Memcached and Redis. ElastiCache can be used to improve the performance of web applications, reduce database load, and provide low-latency access to data.
49. How do you manage costs in AWS?
To manage costs in AWS, you can use AWS Cost Explorer to view and analyze your usage and costs. You can also set up billing alerts to notify you when you exceed certain cost thresholds. Additionally, you can use AWS Budgets to create custom cost and usage budgets and receive alerts when your actual or forecasted costs or usage exceed your budgeted amounts.
50. What is Amazon Managed Blockchain and how is it used?
Amazon Managed Blockchain is a fully managed service that makes it easy to create and manage scalable blockchain networks using popular open-source frameworks like Ethereum and Hyperledger Fabric. It allows you to create and manage multiple blockchain networks with just a few clicks and provides features like identity management, access control, and automatic scaling.
51. How do you configure Amazon CloudHSM?
To configure Amazon CloudHSM, you need to first create an HSM instance in the AWS Management Console. Once the HSM instance is created, you can use it to generate and store cryptographic keys for use in your applications. You can also configure the HSM to meet specific compliance requirements and use it to secure data in transit and at rest.
52. How do you define a CloudFormation stack in JSON syntax?
Syntax:
{
"Resources": {
"myS3Bucket": {
"Type": "AWS::S3::Bucket",
"Properties": {
"BucketName": "my-bucket-name"
}
}
}
}
53. Can you explain what is AWS Glue and how it is used?
AWS Glue is a fully managed ETL (Extract, Transform, Load) service that makes it easy to move data between data stores for analytics and data processing. It automates the process of discovering and cataloging data and provides pre-built connectors to popular data sources like Amazon S3, Amazon RDS, and Amazon Redshift. AWS Glue can also be used to transform data using Python or Apache Spark.
54. What is the syntax for creating a new IAM user using the AWS CLI?
Syntax:
aws iam create-user --user-name my user
55. What is Amazon FSx (File System) and how is it used?
Amazon FSx is a fully managed file system service that provides shared file storage for Amazon EC2 instances. It supports two popular file systems: Lustre and Windows File Server. FSx can be used to run high-performance computing workloads, store business-critical data, and enable file-based backups and disaster recovery.
56. How do you configure Amazon Cognito?
To configure Amazon Cognito, you need to first create a user pool in the AWS Management Console. Once the user pool is created, you can define user attributes, configure sign-up and sign-in options, and set up multi-factor authentication. You can also use Cognito to manage user sessions and access control for your web and mobile apps.
57. Can you explain what is AWS Organizations and how it is used?
AWS Organizations is a service that makes it easy to manage multiple AWS accounts from a central location. It allows you to create and organize accounts into groups, and apply policies to govern access, compliance, and budgeting across all accounts. AWS Organizations can also be used to consolidate billing and share resources between accounts.
58. Can you explain what is Amazon Chime and how it is used?
Amazon Chime is a cloud-based unified communication service that allows users to conduct online meetings, video conferencing, chat, and share content securely. It also provides a screen-sharing feature that lets users collaborate seamlessly. Amazon Chime is used to facilitate virtual communication and collaboration between teams and individuals, whether they are located in the same office or working remotely.
59. What is Amazon WorkDocs and how is it used?
Amazon WorkDocs is a secure enterprise storage and sharing service that allows users to store, share, and collaborate on documents. It allows users to create, edit, and share files within a secure environment and also provides the ability to sync files across multiple devices. Amazon WorkDocs is used to facilitate document management and collaboration between teams and individuals, providing a centralized location for file storage and sharing.
60. How do you configure Amazon Connect?
To configure Amazon Connect, you can follow these steps:
- Create an Amazon Connect instance and assign a phone number to it.
- Configure the routing and IVR (Interactive Voice Response) options for the instance.
- Create queues for incoming calls and assign agents to those queues.
- Create hours of operation and holiday sets for your contact center.
- Create prompts and hold music for callers waiting in the queue.
- Configure recording options for calls and set up monitoring and reporting for your contact center.
61. Can you explain what is Amazon SageMaker and how it is used?
Amazon SageMaker is a fully-managed machine learning service that enables developers and data scientists to build, train, and deploy machine learning models at scale. It provides a range of tools and services that allow users to easily build, train, and deploy machine learning models, including a hosted Jupyter Notebook environment, pre-built algorithms, and automatic model tuning. Amazon SageMaker is used to facilitate the development and deployment of machine learning models for a variety of applications, such as predictive maintenance, fraud detection, and image recognition.
62. What is Amazon MQ and how is it used?
Amazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up and operate message brokers in the cloud. It provides a range of features and services that enable users to securely and reliably transmit messages between distributed applications and services. Amazon MQ is used to facilitate the reliable and secure transmission of messages between applications and services, making it ideal for use cases such as decoupling applications, microservices, and event-driven architectures.
63. What is the syntax for creating a Lambda function using the AWS Management Console?
Syntax:
1. Open the AWS Management Console and navigate to the Lambda service. 2. Click "Create function." 3. Choose "Author from scratch." 4. Enter a name for the function and select a runtime. 5. Add any necessary environment variables or configuration settings. 6. Write the code for the function. 7. Click "Create function" to create the Lambda function.
64. How do you configure Amazon WorkMail?
To configure Amazon WorkMail, you can follow these steps:
- Create a WorkMail organization and select a domain name for your email addresses.
- Create user accounts for your organization’s users and assign them email addresses.
- Set up email client access, such as Microsoft Outlook, for your users.
- Configure email routing and filtering options for your organization.
- Set up email encryption and message archiving options for your organization.
- Configure mobile device access and remote wipe options for your users.
65. Can you explain what is Amazon Textract and how it is used?
Amazon Textract is a machine learning service that automatically extracts text and data from scanned documents. It can recognize and extract text from tables, forms, and other structured documents, and can export the data to other AWS services or third-party applications. Amazon Textract is used to automate the process of document processing and data extraction, making it ideal for use cases such as invoice processing, tax form processing, and medical record processing.
66. How do you define a CloudFormation stack in YAML syntax?
Syntax:
Resources: myS3Bucket: Type: 'AWS::S3::Bucket' Properties: BucketName: my-bucket-name
67. What is Amazon Kendra and how is it used?
Amazon Kendra is an enterprise search service that uses machine learning to provide more accurate and relevant search results across a wide range of data sources. It can be integrated with popular enterprise applications
68. How do you configure Amazon Macie?
Amazon Macie is a security service offered by AWS that uses machine learning to automatically discover, classify, and protect sensitive data stored in AWS. To configure Amazon Macie, you first need to enable it for your AWS account. Once enabled, Macie will begin automatically discovering and classifying sensitive data, such as personally identifiable information (PII), financial information, and intellectual property.
You can further configure Macie by creating custom data classification jobs and setting up alerts and notifications for when sensitive data is accessed or moved. Macie can also integrate with other AWS services, such as S3 and CloudTrail, to provide comprehensive visibility and control over your data.
69. Can you explain what is Amazon FSx for Lustre and how it is used?
Amazon FSx for Lustre is a high-performance file system designed for compute-intensive workloads, such as machine learning, high-performance computing, and video processing. FSx for Lustre provides sub-millisecond latencies and throughput of up to hundreds of gigabytes per second, making it ideal for applications that require fast access to large data sets.
70. How do you define an IAM policy in JSON syntax?
Syntax:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "AllowAllActions",
"Effect": "Allow",
"Action": "*",
"Resource": "*"
}
]
}
71. What is AWS Snowball and how is it used?
AWS Snowball is a petabyte-scale data transfer service offered by AWS that allows you to physically transfer large amounts of data into and out of AWS using secure, ruggedized devices. With Snowball, you can transfer up to 80 terabytes of data per device, and you can use multiple devices in parallel to transfer even larger amounts of data.
To use Snowball, you first need to create a job in the AWS Management Console and select the data you want to transfer. AWS will then ship a Snowball device to your location, which you can use to securely transfer your data. Once the transfer is complete, you ship the device back to AWS, where your data is loaded into your S3 bucket or EBS volume.
72. How do you configure Amazon FSx for Windows File Server?
Amazon FSx for Windows File Server is a fully-managed Windows file system that is built on Microsoft Windows Server and delivered through AWS. To configure FSx for Windows File Server, you first need to create a file system and specify the storage capacity and throughput capacity that you require. You can then choose your preferred deployment type, such as a single-AZ deployment or a multi-AZ deployment for high availability.
73. Can you provide an example of the syntax for creating an SNS topic using the AWS SDK for Java?
Syntax:
AmazonSNSClient snsClient = new AmazonSNSClient();
CreateTopicRequest createTopicRequest = new CreateTopicRequest("my-topic-name");
CreateTopicResult createTopicResult = snsClient.create topic(createTopicRequest);
74. Can you explain what is AWS Control Tower and how it is used?
AWS Control Tower is a service that helps you set up and govern a secure, compliant, multi-account AWS environment. Control Tower provides a pre-configured landing zone that includes a set of guardrails that enforce security and compliance policies, such as AWS Identity and Access Management (IAM) policies, Amazon VPC configurations, and AWS Config rules.
75. How do you configure Amazon SageMaker Ground Truth?
Amazon SageMaker Ground Truth is a fully-managed data labeling service that makes it easy to build high-quality training datasets for machine learning. It provides a web interface and APIs for human reviewers or automated algorithms to annotate data with labels, bounding boxes, or text transcriptions. To configure Amazon SageMaker Ground Truth, you need to create a labeling job, select a dataset, choose a labeling tool, and define the labeling workflow. You can also customize the interface, worker instructions, and output format.
76. What is the syntax for creating a DynamoDB table using AWS CloudFormation?
Syntax:
Resources: myTable: Type: 'AWS::DynamoDB::Table' Properties: AttributeDefinitions: - AttributeName: 'ID' AttributeType: 'S' KeySchema: - AttributeName: 'ID' KeyType: 'HASH' ProvisionedThroughput: ReadCapacityUnits: 5 WriteCapacityUnits: 5 TableName: 'my-dynamodb-table'
77. Can you explain what is Amazon Timestream and how it is used?
Amazon Timestream is a fast, scalable, and serverless time-series database that can be used to store and analyze log data, sensor data, and other time-stamped data. It provides built-in features such as automatic data retention, data compression, and query optimization. To use Amazon Timestream, you need to create a database, define tables and columns, ingest data from various sources using APIs or integrations, and run SQL queries or visualization tools to analyze the data.
78. What is AWS Batch and how is it used?
AWS Batch is a fully-managed service that enables you to run batch computing workloads on the AWS Cloud. It allows you to define jobs, specify the compute resources needed, and manage job dependencies and scheduling. To use AWS Batch, you need to create a job definition, specify a computing environment, define a job queue, and submit jobs using APIs or the AWS Management Console.
79. Can you provide an example of the syntax for creating an S3 bucket using the AWS SDK for Python (Boto3)?
Syntax:
import boto3
s3 = boto3.client('s3')
s3.create_bucket(Bucket='my-bucket-name')
80. How do you configure Amazon Managed Streaming for Apache Kafka?
Amazon Managed Streaming for Apache Kafka is a fully-managed service that enables you to build and run applications that process streaming data using Apache Kafka. It provides a scalable, durable, and secure Kafka cluster that can handle millions of messages per second. To configure Amazon Managed Streaming for Apache Kafka, you need to create a Kafka cluster, configure security and networking settings, create topics, and ingest and process data using Kafka APIs or integrations.
81. Can you explain what is Amazon HealthLake and how it is used?
Amazon HealthLake is a HIPAA-eligible service that enables healthcare providers and payers to store, transform, and analyze health data in a secure and compliant manner. It provides a scalable and interoperable data lake that can store structured and unstructured data from various sources, such as EHRs, IoT devices, and genomics data. To use Amazon HealthLake, you need to create a data store, ingest data using APIs or integrations, apply transformations and normalizations, and run analytics and machine learning algorithms.
82. What is AWS Snowcone and how is it used?
AWS Snowcone is a portable and rugged edge computing and storage device that can be used to collect, process, and transfer data in harsh and remote environments. It provides up to 8 TB of storage and supports various AWS services, such as Amazon S3, Amazon EFS, and AWS IoT Greengrass. To use AWS Snowcone, you need to order the device, configure the networking and security settings, transfer data using APIs or integrations, and ship the device back to AWS for data migration.
83. How do you configure Amazon Elastic File System (EFS)?
Amazon Elastic File System (EFS) is a scalable and fully-managed file storage service that can be used to store and share files across multiple Amazon EC2 instances or other computing resources. It provides multiple file system modes, such as General Purpose, Max I/O, and Infrequent Access, to optimize performance and cost. To configure Amazon Elastic File System (EFS), you need to create a file system, define security and networking settings, mount the file system on your compute resources, and manage access and permissions using POSIX-compatible file system permissions.
84. What is the syntax for launching an EC2 instance using the AWS CLI?
Syntax:
aws ec2 run-instances --image-id ami-xxxxxxxx --count 1 --instance-type t2.micro - -key-name my-key-pair --security-group-ids sg-xxxxxxxx --subnet-id subnet-xxxxxxxx
85. Can you provide an example of the syntax for launching a Redshift cluster using the AWS CLI?
Syntax:
aws redshift create-cluster --cluster-identifier my-redshift-cluster --node-type dc2.large --master-username myuser --master-user-password mypassword --number-of-nodes 2 --publicly-accessible
86. What are the elements of an AWS CloudFormation template?
AWS CloudFormation templates are YAML or JSON formatted text files that are comprised of five essential elements, they are:
- Template parameters
- Output values
- Data tables
- Resources
- File format version
87. Explain what S3 is.
S3 stands for Simple Storage Service. You can use the S3 interface to store and retrieve any amount of data, at any time and from anywhere on the web. For S3, the payment model is “pay as you go”
88. List the pros and cons of serverless computing.
Advantages:
- Cost-effective
- Operations have been simplified.
- Improves Productivity
- ScalableDisadvantages:
- This can result in response latency
- Due to resource constraints, it is not suitable for high-computing operations.
- Not very safe.
- Debugging can be difficult.
89. How do you monitor Amazon VPC?
You can monitor VPC by using:
- CloudWatch and CloudWatch logs
- VPC Flow Logs
90. What are the factors to consider while migrating to Amazon Web Services?
- Operational Costs – These include the cost of infrastructure, the ability to match demand and
- supply, transparency, and others.
- Workforce Productivity
- Cost avoidance
- Operational resilience
- Business agility
91. What are the different AWS IAM categories that you can control?
- Create and manage IAM users
- Create and manage IAM groups
- Manage the security credentials of the users
- Create and manage policies to grant access to AWS services and resources
92. Can an AMI be shared?
Yes, an AMI can be shared.
93. What Is Amazon Route 53?
Amazon Route 53 is a scalable and highly available Domain Name System (DNS). The name refers to TCP or UDP port 53, where DNS server requests are addressed.
94. What are the different types of Instances?
Following are the types of instances:
- Compute Optimized
- Memory-Optimized
- Storage Optimized
- Accelerated Computing
- General Purpose
95. What are the different layers that define cloud architecture?
The following are the various layers operated by cloud architecture:
- CLC or Cloud Controller.
- Cluster Controller
- SC or Storage Controller
- NC, or Node Controller
- Walrus
96. What is the use of lifecycle hooks in Autoscaling?
Lifecycle hooks are used for Auto-scaling to put an additional wait time to a scale-in or a scale-out event
97. How many Subnets can you have per VPC?
We can have up to 200 Subnets per Amazon Virtual Private Cloud (VPC)
98. What are the Snow family members?
- AWS Snowcone
- AWS Snowball
- AWS Snowmobile
99. What is the use of the ELB gateway load balancer endpoint?
ELB gateway load balancer endpoints make private connectivity between the virtual appliances in the Virtual Private Cloud (VPC) and the application servers in the service consumer VPC.
100. What are the different storage classes of Amazon S3?
- S3 Intelligent -Tiering
- S3 Standard
- S3 Standard-infrequent access (S3 Standard – A)
- S3 One Zone-infrequent access (S3 One Zone –IA)
- S3 Glacier instant retrieval
- S3 Glacier flexible retrieval
- S3 Glacier deep archive
- S3 Outposts
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