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..

When writing a Lambda function, what is the benefit of instantiating AWS clients outside the scope of the handler? A. Legibility and stylistic convention B. Taking advantage of connection re-use C. Better error handling D. Creating a new instance per invocation 람다함수를 작성할 때 AWS 클라이언트를 처리기 범위 밖에 인스턴스화하면 어떤 이점이 있는가? A. 가독성 및 양식적 관습 B. 연결 재사용을 활용 C. 오류 처리 능력 향상 D. 호출당 새 인스턴스 생성 정답↓ 더보기 Correct Answe..

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 company is building a stock trading application that requires sub-millisecond latency in processing trading requests. Amazon DynamoDB is used to store all the trading data that is used to process each request. After load testing the application, the development team found that due to data retrieval times, the latency requirement is not satisfied. Because of sudden high spikes in the number of ..

A large e-commerce site is being designed to deliver static objects from Amazon S3. The Amazon S3 bucket will server more than 300 GET requests per second. What should be done to optimize performance? (Choose two.) A. Integrate Amazon CloudFront with Amazon S3. B. Enable Amazon S3 cross-region replication. C. Delete expired Amazon S3 server log files. D. Configure Amazon S3 lifecycle rules. E. R..

A Developer is asked to implement a caching layer in front of Amazon RDS. Cached content is expensive to regenerate in case of service failure. Which implementation below would work while maintaining maximum uptime? A. Implement Amazon ElastiCache Redis in Cluster Mode B. Install Redis on an Amazon EC2 instance. C. Implement Amazon ElastiCache Memcached. D. Migrate the database to Amazon Redshif..

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..