안녕하세요.🐱‍🐉 얼마 전에 AWS 자격증을 취득해서 자격증을 준비하며 시험과 관련하여 도움된 점, 공부법 등 을 포스팅을 해봐요. 1.1 자격증 종류 1.2 시험 시간 및 비용 1.3 AWS 시험 응시 관련 1.4 AWS 시험 결과 1.5 AWS 공부 방법 1.1 AWS 자격증 종류 자격증 등급 - 기초 (Foundational) - 어소시에이트 (Associate) - 프로페셔널 (Professional) - 전문 분야 (Specialty) ※ 현재는 이전 등급을 합격할 필요 없이 바로 모든 시험을 응시할 수 있어요. 그렇지만 시험 비용이 마냥 저렴하진 않고 합격 시 다른 시험의 비용을 50% 할인해주는 할인 코드를 제공해 주기 때문에, 프로페셔널까지 취득 예정이라면 아래 단계 시험부터 응시하는 것도..

A Developer has created a software package to be deployed on multiple EC2 instances using IAM roles. What actions could be performed to verify IAM access to get records from Amazon Kinesis Streams? (Choose two.) A. Use the AWS CLI to retrieve the IAM group. B. Query Amazon EC2 metadata for in-line IAM policies. C. Request a token from AWS STS, and perform a describe action. D. Perform a get acti..

A serverless application uses an API Gateway and AWS Lambda. Where should the Lambda function store its session information across function calls? A. In an Amazon DynamoDB table B. In an Amazon SQS queue C. In the local filesystem D. In an SQLite session table using ג€"DSQLITE_ENABLE_SESSION 서버가 없는 애플리케이션은 API Gateway와 AWS Lambda를 사용한다. 람다 함수는 함수 호출에서 세션 정보를 어디에 저장해야 하는가? A. Amazon DynamoDB 테이블에..

A company wants to implement a continuous integration for its workloads on AWS. The company wants to trigger unit test in its pipeline for commits-on its code repository, and wants to be notified of failure events in the pipeline. How can these requirements be met? A. Store the source code in AWS CodeCommit. Create a CodePipeline to automate unit testing. Use Amazon SNS to trigger notifications ..

An application stores images in an S3 bucket. Amazon S3 event notifications are used to trigger a Lambda function that resizes the images. Processing each image takes less than a second. How will AWS Lambda handle the additional traffic? A. Lambda will scale out to execute the requests concurrently. B. Lambda will handle the requests sequentially in the order received. C. Lambda will process mul..

Given the source code for an AWS Lambda function in the local store.py containing a handler function called get_store and the following AWS CloudFormation template: What should be done to prepare the template so that it can be deployed using the AWS CLI command aws cloudformation deploy? A. Use aws cloudformation compile to base64 encode and embed the source file into a modified CloudFormation t..

A Developer has created a large Lambda function, and deployment is failing with the following error: ClientError: An error occurred (InvalidParameterValueException) when calling the CreateFunction operation: Unzipped size must be smaller than XXXXXXXXX bytesג€™, where XXXXXXXXX is the current Lambda limit What can the Developer do to fix this problem? A. Submit a limit increase request to AWS Su..

An application reads data from an Amazon DynamoDB table. Several times a day, for a period of 15 seconds, the application receives multiple ProvisionedThroughputExceeded errors. How should this exception be handled? A. Create a new global secondary index for the table to help with the additional requests. B. Retry the failed read requests with exponential backoff. C. Immediately retry the failed..

A Developer needs temporary access to resources in a second account. What is the MOST secure way to achieve this? A. Use the Amazon Cognito user pools to get short-lived credentials for the second account. B. Create a dedicated IAM access key for the second account, and send it by mail. C. Create a cross-account access role, and use sts:AssumeRole API to get short-lived credentials. D. Establish..

A current architecture uses many Lambda functions invoking one another as large state machine. The coordination of this state machine is legacy custom code that breaks easily. Which AWS Service can help refactor and manage the state machine? A. AWS Data Pipeline B. AWS SNS with AWS SQS C. Amazon Elastic MapReduce D. AWS Step Functions 현재의 아키텍처는 대형 상태 기계로서 서로를 호출하는 많은 람다 기능을 사용한다. 이 상태 기계의 조정은 쉽게..

A Developer has implemented a Lambda function that needs to add new customers to an RDS database that is expected to run hundreds of times per hour. The Lambda function is configured to use 512MB of RAM and is based on the following pseudo code: After testing the Lambda function, the Developer notices that the Lambda execution time is much longer than expected. What should the Developer do to im..

An application takes 40 seconds to process instructions received in an Amazon SQS message. Assuming the SQS queue is configured with the default VisibilityTimeout value, what is the BEST way, upon receiving a message, to ensure that no other instances can retrieve a message that has already been processed or is currently being processed? A. Use the ChangeMessageVisibility API to increase the Vis..

A Developer is creating a web application that requires authentication, but also needs to support guest access to provide users limited access without having to authenticate. What service can provide support for the application to allow guest access? A. IAM temporary credentials using AWS STS. B. Amazon Directory Service C. Amazon Cognito with unauthenticated access enabled D. IAM with SAML inte..

What are the steps to using the AWS CLI to launch a templatized serverless application? A. Use AWS CloudFormation get-template then CloudFormation execute-change-set. B. Use AWS CloudFormation validate-template then CloudFormation create-change-set. C. Use AWS CloudFormation package then CloudFormation deploy. D. Use AWS CloudFormation create-stack then CloudFormation update-stack. 템플리트화된 서버 없는 ..

A Developer has written a serverless application using multiple AWS services. The business logic is written as a Lambda function which has dependencies on third-party libraries. The Lambda function endpoints will be exposed using Amazon API Gateway. The Lambda function will write the information to Amazon DynamoDB. The Developer is ready to deploy the application but must have the ability to rol..