Sherry IT Blog

AWS Storage 1. Amazon S3 (Amazon Simple Storage Service) -> 웹 어느 곳에서든지 용량에 관꼐없이 데이터를 저장하고 검색할 수 있는 단순한 웹서비스 인터페이스를 갖춘 객체 스토리지 -> 데이터레이크,백업,복구,재해 복구의 대상, 서버없는 컴퓨팅으로 사용가능 ->데이터 마이그레이션 옵션을 사용하면 Amazon S3 로 대량의 데이터를 간편하게 송신 또는 수신 가능 -> 간편함, 내구성, 확장가능, 보안, Available, 저렴한 비용, 간편한 데이터 전송, 통합(다른 AWS 서비스와 통합가능), 손쉬운 관리 2. Amazon EBS(Elastic Block Store) -> AWS클라우드의 Amazon EC2 인스턴스에 사용할 영구 블록 스토리지 볼륨을 제공함..

Which AWS Cost Management tool allows you to view the most granular data about your AWS bill? A.AWS Cost Explorer B.AWS Budgets C.AWS Cost and Usage report D.AWS Billing dashboard 정답: C Explanation: The Cost & Usage Report is your one-stop-shop for accessing the most granular data about your AWS costs and usage. You can also load your cost and usage information into Amazon Athena, Amazon Redshif..

Amazon EC2 -EC2 is one of the most popular of AWS' offering -EC2 = Elastic Compute Cloud = Infrastructure as a Service -It mainly consists in the capability of : Reing virtual machines(EC2) Storing data on virtual drivers(EBS) Disturbuting load accross machines(ELB) Scaling the services using an auto-scaling group(ASG) -Knowing EC2 is fundamental to unserstand how the Clour works -EC2 클라우드에서 안전하..

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1. What is a proper definition of IAM Roles? 1) An IAM entity that defines a set of permissions for making AWS service requests, thet will be used by AWS services 2) IAM Users in multiple Groups 3) A password policy 4) Permission assingned to Users to perform actions -> Some AWS service will need to perform actions on your behalf. To do so, you assign permission to AWS services with IAM Roles. 2..

IAM = Identity and Access Management, Global service -Root account created by default, shouldn't be used or shared -Users are people within your oranization, and can be grouped -Groups only contain users, not other groups -Users don't have to belong to a group, and user can belong to multiple groups IAM Section Summary Users : mapped to a physical user,has a password for AWS Console Groups : con..

1. You ONLY want to manage Applications and Data. Which type of Cloud Computing model Should you use? 1) On-premises 2) Infrastructure as a Service(lasS) 3) Software as a Service(SaaS) 4) Platform as a Service(PassS) -> In the Platform as a Service model, you only manage the data and the applications. 2. What is the pricing model of Cloud Computing? 1) Discounts over time 2) Pay-as-you-go pricin..

AWS Regions -AWS has regions all around the world -Names can be us-east-1, eu-west-3.... -A region is a cluster of data centers How to choose an AWS Region? - Compliance with data governance and legal requirements : data never leaves a region without your explicit permission - Proximity to customer : reduced latency - Available services : within a Region : new Services and new features aren't av..

가장 기초가 되는 질문부터 시작..대학교 시절 생각나네... *What is a server compose of?(서버의 구성요소는 무엇인가?) -compute : CPU -Memory : RAM -Storage : Data -Database : Store data in a structured way -Network : Routers, swith, DNS Server Wht is Cloud Computing?(클라우드 컴퓨팅이란?) -Cloud comuting is the on-demand delivery of compute piower, database storage, applications and other It resources. -Through a cloud services platform wit..

AWS 자격증의 기본적인 컨셉은 이러하다 요즘 세상은 풀스텍 개발자를 원하는 추세인듯싶다. 점점 더... 언어를 잘하는 것도 중요하지만 인프라 구축 능력도 더불어 갖추어진 인재를 원한다는걸 위의 그림을 보면 알 수 있다. 처음엔 생각도 없다가 회사에서 주위에서 AWS 구축사례도 많아지고, 내가하는 업무도 언제 클라우드를 도입할 지 모르기때문에 미리미리 준비하는 차원에서 기초부터 다져나가려한다. (실제 많은 회사들이 도입했고(리테일,서비스쪽은 이미 사용중), 금융권들도 점차적으로 업무단위로 도입하는 추세다) * AWS Cloud Practitioner시험의 큰 개요 비중 1. Cloud Concept 28% 2. Security 24% 3. Technology 36% 4. Billing pricing 12..