A developer is developing an application that uses signed requests (Signature Version 4) to call other AWS services.The developer has created a canonical request, has created the string to sign, and has calculated signing information.Which methods could the developer use to complete a signed request? (Choose two.)Read More →
A company wants to review its monthly costs of using Amazon EC2 and Amazon RDS for the past year.Which AWS service or tool provides this information?Read More →
A company is hosting backend web services across Amazon EC2 Linux instances in public subnets in a VPC.A SysOps administrator tries to connect to the instance by using SSH but is unable to connect.What could be the cause of the failed connection?Read More →
A Machine Learning Specialist needs to be able to ingest streaming data and store it in Apache Parquet files for exploration and analysis.Which of the following services would both ingest and store this data in the correct format?Read More →
A company needs a secure connection between its on-premises environment and AWS.This connection does not need high bandwidth and will handle a small amount of traffic.The connection should be set up quickly.What is the MOST cost-effective method to establish this type of connection?Read More →
A company is migrating its on-premises database workloads to the AWS Cloud.A database specialist performing the move has chosen AWS DMS to migrate anOracle database with a large table to Amazon RDS.The database specialist notices that AWS DMS is taking significant time to migrate the data.Which actions would improve the data migration speed? (Choose three.)Read More →
A developer is building a microservice that uses AWS Lambda to process messages from an Amazon Simple Queue Service (Amazon SQS) standard queue.The Lambda function calls external APIs to enrich the SQS message data before loading the data into an Amazon Redshift data warehouse.The SQS queue must handle a maximum of 1,000 messages per second.During initial testing, the Lambda function repeatedly inserted duplicate data into the Amazon Redshift table.The duplicate data led to a problem with data analysis.All duplicate messages were submitted to the queue within 1 minute of each other.How should the developer resolve this issue?Read More →
A production account has a requirement that any Amazon EC2 instance that has been logged in to manually must be terminated within 24 hours.All applications in the production account are using Auto Scaling groups with the Amazon CloudWatch Logs agent configured.How can this process be automated?Read More →
A company hosts a web portal on Amazon EC2 instances.The web portal uses an Elastic Load Balancer (ELB) and Amazon Route 53 for its public DNS service.The ELB and the EC2 instances are deployed by way of a single AWS CloudFormation stack in the us-east-1 Region.The web portal must be highly available across multiple Regions.Which configuration will meet these requirements?Read More →
A solutions architect must analyze a company’s Amazon EC2 instances and Amazon Elastic Block Store (Amazon EBS) volumes to determine whether the company is using resources efficiently.The company is running several large, high-memory EC2 instances to host database clusters that are deployed in active/ passive configurations.The utilization of these EC2 instances varies by the applications that use the databases, and the company has not identified a pattern.The solutions architect must analyze the environment and take action based on the findings.Which solution meets these requirements MOST cost-effectively?Read More →
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