A company asks a SysOps administrator to ensure that AWS CloudTrail files are not tampered with after they are created.Currently, the company uses AWSIdentity and Access Management (IAM) to restrict access to specific trails.The company’s security team needs the ability to trace the integrity of each file.What is the MOST operationally efficient solution that meets these requirements?Read More →
A company maintains a restaurant review website.The website is a single-page application where files are stored in Amazon S3 and delivered using AmazonCloudFront.The company receives several fake postings every day that are manually removed.The security team has identified that most of the fake posts are from bots with IP addresses that have a bad reputation within the same global region.The team needs to create a solution to help restrict the bots from accessing the website.Which strategy should a solutions architect use?Read More →
A company has multiple production AWS accounts.Each account has AWS CloudTrail configured to log to a single Amazon S3 bucket in a central account.Two of the production accounts have trails that are not logging anything to the S3 bucket.Which steps should be taken to troubleshoot the issue? (Choose three.)Read More →
A company runs demonstration environments for its customers on Amazon EC2 instances.Each environment is isolated in its own VPC.The company’s operations team needs to be notified when RDP or SSH access to an environment has been established.Read More →
A company is running a data-intensive application on AWS.The application runs on a cluster of hundreds of Amazon EC2 instances.A shared file system also runs on several EC2 instances that store 200 TB of data.The application reads and modifies the data on the shared file system and generates a report.The job runs once monthly, reads a subset of the files from the shared file system, and takes about 72 hours to complete.The compute instances scale in an Auto Scaling group, but the instances that host the shared file system run continuously.The compute and storage instances are all in the same AWS Region.A solutions architect needs to reduce costs by replacing the shared file system instances.The file system must provide high performance access to the needed data for the duration of the 72-hour run.Which solution will provide the LARGEST overall cost reduction while meeting these requirements?Read More →
A social media application stores millions of video clips in Amazon S3 and serves them to users across the world.The traffic to the application varies, but access often increases suddenly to more than 10,000 PUT requests and GET requests each second.As the application has grown in popularity, users report poor quality of video streaming.Which solution will provide the LARGEST improvement in performance?Read More →
A company has deployed an application in the AWS Cloud.The company wants to ensure that the application is highly resilient.Which component of AWS infrastructure can the company use to meet this requirement?Read More →
A company’s application running on Amazon EC2 Linux recently crashed because it ran out of available memory.Management wants to be alerted if this ever happens again.Which combination of steps will accomplish this? (Choose two.)Read More →
A machine learning (ML) engineer is preparing a dataset for a classification model.The ML engineer notices that some continuous numeric features have a significantly greater value than most other features.A business expert explains that the features are independently informative and that the dataset is representative of the target distribution.After training, the model’s inferences accuracy is lower than expected.Which preprocessing technique will result in the GREATEST increase of the model’s inference accuracy?Read More →
A company wants to perform an online migration of active datasets from an on-premises NFS server to an Amazon S3 bucket that is named DOC-EXAMPLE-BUCKET.Data integrity verification is required during the transfer and at the end of the transfer.The data also must be encrypted.A solutions architect is using an AWS solution to migrate the data.Which solution meets these requirements?Read More →
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