Amazon DVA-C01 Practice Test - Questions Answers, Page 42
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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 company process incoming documents from an Amazon S3 bucket. Users upload documents to an S3 bucket using a web user interface. Upon receiving files in S3, and AWS Lambda function is invoked to process the files, but the Lambda function times out intermittently.
If the Lambda function is configured with the default settings, what will happen to the S3 event when there is a timeout exception?
A developer has launched an application that calls an API by way of Amazon API Gateway. It offers information that changes several times a day, but is not updated in real time. The application has become so popular that the API endpoint is overloaded and that traffic to the endpoint must be reduced.
What can the developer do to address the performance issues?
A developer wants to secure sensitive configuration date such as passwords, database strings, and application license codes. Access to this sensitive information must be tracked for future audit purposes.
A developer has built an application using Amazon Cognito for authentication and authorization.
After a user is successfully logged in to the application, the application creates a user record in an Amazon DynamoDB table. What is the correct flow to authenticate the user and create a record in the DynamoDB table?
A developer has designed a customer, facing application that is running on an Amazon EC2 instance.
The application logs every request made to it. The application usually runs seamlessly, but a spike in traffic generates several logs that cause the disk to fill up and eventually run out of memory Company policy requires old to be centralized for analysis.
Which long-term solution should the developer employ to prevent the issue from reoccurring?
A company recently experienced some unexpected downtime. After investigating, the company determines that a developer mistakenly terminated several production Amazon EC2 instances. What should the company do to BEST protect against accidental terminations in the future.
A developer works in an environment with multiple AWS accounts that have AWS Lambda functions processing the same 100 KB payloads. The developer wants to centralize the point of origin of the payloads to one account and have all the Lambda functions be invoked whenever the initiating event occurs in the parent account.
How can the developer design the workflow in the MOST efficient way, so all the multi-account Lambda functions get invoked when the event occurs?
A developer is creating a serverless web application and maintains different branches of code The developer wants to avoid updating the Amazon API Gateway target endpoint each time a new code push is performed What solution would allow me developer to perform a code push efficiently, without the need to update the API Gateway?
When using the AWS Encryption SDK now does the developer keep track of the data encryption keys used to encrypt data?
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