AWS Technical Professional Accreditation, Questions with accurate answers, 2022/2023 latest updates. Rated A

AWS Technical Professional Accreditation, Questions with accurate answers, 2022/2023 latest updates. Rated A What is the Cloud? - Internet provided IT services, including servers, storag e, databases, and Applications. What is cloud computing? - On-demand delivery of compute power, database, storage , Application, and other IT services via the internate as a Pay-as-you-go pricing. Advanatges of cloud computing - 1. Move for Capex to Opex expenditures 2.Benefit for cloud providers massive economic scale 3. Stop guessing about capacity requirements 4.Increased speed and agility 5. Stop spending money, running, and maintaining Datacenters. 6. Go Global in minutes. AWS Region - AWS Regions are globel locations where AWS host availability zones. AWS Availability Zone - AZs are multiple datacenter in a region What is an AWS Local Zone - AWS compute, storage, database and other IT infrasturcture near large polutation areas. The extend regions. What are AWS Points-of-Presences (POP) - Edage locations of regional cache servers used by cloudfront. What are the AWS core Technologies - Compute, Storage, Databases, Security, Management, and Networking. Amazon EC2 - Secure and resizable compute capacity in the cloud. Launch applications when needed without upfront commitments. Amazon Lightsail - Virtual servers, storage, databases, and networking for a low, predictable price. Amazon Elastic Container Service (Amazon ECS) - a fully managed container orchestration service Amazon Elastic Container Registry (ECR) - a fully-managed Docker container registry that makes it easy for developers to store, manage, and deploy Docker container images. Amazon Elastic Kubernetes Service (Amazon EKS) - a fully managed Kubernetes service AWS Lambda - is a compute service that lets you run code without provisioning or managing servers. It executes your code only when needed and scales automatically, from a few requests per day to thousands per second AWS Fargate - Serverless compute for containers AWS Outposts - Run AWS infrastructure and services on premises for a truly consistent hybrid experience AWS Wavelength - enables developers to build applications that deliver single-digit millisecond latencies to mobile devices and end-users. 5G VMware Cloud on AWS - VMware and AWS offer organizations a faster, secure path to the cloud. Use your current skills, processes, and governance to deliver secure virtual apps and desktops with our Virtual Desktop Infrastructure (VDI) solutions to enable employees to work securely from any location. With VMware Cloud™ on AWS you can migrate datacenters to the cloud for rapid datacenter evacuation, disaster recovery, and application modernization. With over 3 years of joint engineering, VMware provides organizations with enhanced VMware functionalities integrated in the solution and a single point of contact for support and service integration AWS Local Zones - AWS infrastructure deployment that places AWS compute, storage, database, and other select services closer to large population, industry, and IT centers where no AWS Region exists today Amazon EC2 Spot Instances - Spot Instances are available at up to a 90% discount compared to On-Demand prices. You can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and other test & development workloads. Because Spot Instances are tightly integrated with AWS services such as Auto Scaling, EMR, ECS, CloudFormation, Data Pipeline and AWS Batch, you can choose how to launch and maintain your applications running on Spot Instances. Amazon EC2 Auto Scaling - maintain application availability and allows you to automatically add or remove EC2 instances according to conditions you define AWS Batch - job definitions specify how jobs are to be run. While each job must reference a job definition, many of the parameters that are specified in the job definition can be overridden at run time. AWS Compute Optimizer - Recommends optimal AWS Compute resources to reduce costs and improve performance for your workloads AWS Elastic Beanstalk - is a cloud deployment and provisioning service that automates the process of getting applications set up on the Amazon Web Services (AWS) infrastructure EC2 Image Builder - simplifies the creation, maintenance, validation, sharing, and deployment of Linux or Windows Server images for use with Amazon EC2 and on-premises. Elastic Load Balancing - automatically distributes incoming app traffic across multiple instances What are Benifits for EC2 - Elastic, Control, Flexibility,integrated, reliable,Sercure,Inexpensive,easy Amazon EC2 Instance Types - Amazon EC2 provides a wide selection of instance types optimized to fit different use cases. Instance types comprise varying combinations of CPU, memory, storage, and networking capacity and give you the flexibility to choose the appropriate mix of resources for your applications. Each instance type includes one or more instance sizes, allowing you to scale your resources to the requirements of your target workload. EC2 General Purpose - General purpose instances provide a balance of compute, memory and networking resources, and can be used for a variety of diverse workloads. EC2 Compute Optimized - Compute Optimized instances are ideal for compute bound applications that benefit from high performance processors EC2 Memory Optimized - Memory optimized instances are designed to deliver fast performance for workloads that process large data sets in memory. EC2 Accelerated Computing - Accelerated computing instances use hardware accelerators, or co-processors, to perform functions, such as floating point number calculations, graphics processing, or data pattern matching, more efficiently than is possible in software running on CPUs. EC2 Storage Optimized - Storage optimized instances are designed for workloads that require high, sequential read and write access to very large data sets on local storage. EC2 Instance Features - Amazon EC2 instances provide a number of additional features to help you deploy, manage, and scale your applications. EC2 Measuring Instance Performance - Amazon EC2 allows you to provision a variety of instances types, which provide different combinations of CPU, memory, disk, and networking. What are the primary AWS solutions - 1). Machine Learning 2). Analytcs & Data Lakes 3). IOT (Internet of things) 4) Serverless Computes 5) Enterprise Applications 6) Storage 7) Containers 8) Windows Workloads What are the six Rs for migration - 1) Rehost 2) Replatform 3) Refactor 4) Retire 5) Retain 6) Repurchase What is Rehost - Migrated Application (lift and shift) to a like for like cloud platform. Automate Rehosting Tool - AWS VM Import/Export What is easier after migration - Optimizing and re-architecting a application What is Replatform: lift, tinker, and shift - 1) Retains the current core architecture 2) Make the Target AWS Cloud optimized Examples - Database moved ot AWS RDS - Applications moved to AEB (Amazon Elastic Beanstalk What is Refactoring - Modernizing applications. Adding cloud native features to applications. Re-imaging the application architecture. What is Retire migration strategy - Shutting off non-usefull apps to reduce spending, management and security What is Retain/Revisit migration strategy - Keeping certain applications on-premise What is Repurchase migration strategy - Moving workflow to software as a service (SaaS) What are the seven Cloud Architecture best pracitices? - 1) Design for failure and nothing fails 2) Build security in every layer 3) Leverage different storage options 4) Implement elasticity 5) Think parallel 6) Loose coupling sets you free 7) Don't fear constriants Design for failure and nothing fails - 1) Avoid single point of failure 2) Multiple Instances 3) Multiple AZs 4) Separate single server into multiple tiered application 5) For Amazon RDS, use Multi-AZ feature Build security in every layer - Encrypt Data at rest and in transit Enforce principle of least privilage in IAM Implemet both Security Groups and Network Access Control Lists Consider advanced security features and services Leverage different storage options - 1) Move static web assets to Amazon S3 2) Use Amazon CloudFront to serve globally 3) Store session state in DynamoDB 4) Use ElastiCache between hosts and databases Implement elasticity - Implement Auto Scaling policies Architecture resiliency to reboot and relaunch Leverage managed services like Amazon S3 and Amazon DynamoDB Think parallel - 1) Scale horizontally, not vertically 2) Decouple compute from session/state 3) Use Elastic Load Balancing 4) Right-size your infrastructure Loose coupling sets you free - 1) instead if a single , ordered workflow, use multiple queues 2) Use Amazon Simple Queue Service and Simple Notification Service (SQS and SNS) 3) Leverage existing services Don't fear constraints - 1) Rethink traditional constraints 2) Need more RAM 3) Better IOPS for databases 4) Response to failure What is a Well-Architected Framwork? - 1) A framework for ensuring infrastructures are: Secure, High-performing, Reslient, Efficient 2) Practices developed through reviewing customers' architecture on AWS 3) Systematic approach for evaluating and implementing architectures 4) Well-Architecture tool in the console What are the five pillars of a well architected framework? - 1) Operational Excellence 2) Security 3) Reliability 4) Performance efficiency 5) Cost optimazation What is Cost optimizition? - Pay for what you need. What are 4 cost optimiztion conciderations -