A developer is building an application that reads 90 Items of data each second from an Amazon DynamoDB table. Each item Is 3 KB m size. The table is configured to use eventually consistent reads How many read capacity units should the developer provision for the table?
A. 25
B. 35
C. 45
D. 85
A developer is building an application that will run on Amazon EC2 instances. The application needs to connect to an Amazon DynamoDB table to read and write records. The security team must periodically rotate access keys.
Which approach will satisfy these requirements?
A. Create an IAM role with read and write access to the DynamoDB table. Generate access keys for the user and store the access keys in the application as environment variables.
B. Create an IAM user with read and write access to the DynamoDB table. Store the user name and password in the application and generate access keys using an AWS SDK.
C. Create an IAM role, configure read and write access for the DynamoDB table, and attach to the EC2 instances.
D. Create an IAM user with read and write access to the DynamoDB table. Generate access keys for the user and store the access keys in the application as a credentials file.
A developer has code stored in an Amazon S3 bucket The code must be deployed as an AWS Lambda function across multiple accounts in the same Region as the S3 bucket The Lambda function will be deployed using an AWS CloudFormation template that is run for each account What is the MOST secure approach to allow access to the Lambda code in the S3 bucket?
A. Grant the CloudFormation execution role S3 list and get permissions Add a bucket policy to Amazon S3 with the Pnncipal of "AWS": [account numbers].
B. Grant the CloudFormation execution role S3 get permissions Add a bucket policy to Amazon S3 with the Principal of "".
C. Use a service-based link to grant the Lambda function S3 list and get permissions by explicitly adding the S3 bucket's account number in the resource
D. Use a service-based link to grant the Lambda function S3 get permissions and add a Resource of "*" to allow access to the S3 bucket.
Which of the following are good use cases for how Amazon ElastiCache can help an application? (Select TWO.)
A. Improve the performance of S3 PUT operations
B. Improve the latency of deployments performed by AWS CodeDeploy
C. Improve latency and throughput for read-heavy application workloads.
D. Reduce the time required to merge AWS CodeCommit branches
E. Improve performance of compute-intensive applications.
A photo sharing website gets millions of new images every week The images are stored in Amazon S3 under a formatted date prefix A developer wants to move images to a few S3 buckets for analysis and further processing Images are not required to be moved in real time What is the MOST efficient method for performing this task?
A. Use S3 PutObject events to Invoke AWS Lambda Then Lambda will copy the files to the other objects
B. Create an AWS Lambda function that will pull a day of Images from the origin bucket and copy them to the other buckets.
C. Use S3 Batch Operations to create jobs for images to be copied to each Individual bucket.
D. Use Amazon EC2 to batch pull images from multiple days and copy them to the other buckets
A developer is trying to get data from an Amazon DynamoDB table called demoman-table The developer configured the AWS CLI to use a specific 1AM user's credentials and executed the following command: aws dynamodb get-item table-name demoman-table --key '("id": <"N''; ''1993''}} '
The command returned errors and no rows were returned What is the MOST likely cause of these issues?
A. The command is incorrect; it should be rewritten to use : ut-i t am with a string argument.
B. The developer needs to log a ticket with AWS Support to enable access to the demoman-table.
C. Amazon DynamoDB cannot be accessed from the AWS CLI and needs to be called via the REST API
D. The 1AM user needs an associated policy with read access to demoman-table.
A developer must build a mobile application that allows users to read and write data from an Amazon DynamoDB table to store user state for each unique user. The solution needs to limit data access to allow users access only to their own data Which solution below is the most secure?
A. Embed AWS access credentials into the application and create DynamoDB queries that limit user access.
B. Use Amazon Cognito identity pools to assign unique identifiers and provide user access
C. Modify the DynamoDB table to allow public read and writes, then add client-side filtering
D. Create a web portal for users to create an account on AWS Directory Service
A developer Is working with a Docker application that needs to be quickly deployed using AWS without changing the infrastructure or configuring health checks. The application should be configured so that changes and updates can be made automatically without any downtime Which solution will meet these requirements?
A. Use AWS Elastic Beanstalk for application deployment and select an all-at-once update policy.
B. Use AWS Elastic Beanstalk for application deployment and select a rolling deployment policy.
C. Deploy the Docker container on an Amazon EC2 instance in an Auto Scaling group and configure a health check on the EC2 instance
D. Deploy the Docker container using AWS Lambda and enable Amazon CloudWatch monitoring
A developer is building an AWS Lambda function that will dynamically generate and send a weekly newsletter to 100.000 users This newsletter contains both static text and images The developer needs a fast and highly scalable place to store the images that will be hyperlinked in the newsletter Where should the developer store these images?
A. Use an Amazon DynamoDB table with DynamoDB Streams and read capacity auto scaling enabled
B. Use an Amazon S3 bucket and S3 Transfer Acceleration to speed up the image download
C. Use an Amazon Aurora database with a public DNS endpoint and auto scaling enabled
D. Use an Amazon S3 backed Amazon CloudFront distribution with a high Time-to-Live (TTL) to maximize caching
A developer is building an application on Amazon EC2 The developer encountered an "Access Denied" error on some of the API calls to AWS services while testing The developer needs to modify permissions that have been already given to the instance How can these requirements be met with minimal changes and minimum downtime?
A. Make a new 1AM role with the needed permissions Stop the instance. Attach the new 1AM role to the instance Start the instance.
B. Delete the existing 1AM role Attach a new 1AM role with the needed permissions
C. Stop the instance Update the attached 1AM role adding the needed permissions. Start the instance
D. Update the attached 1AM role adding the needed permissions
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