Exam 6: AWS Certified Developer Associate (DVA-C01)

A Development team wants to immediately build and deploy an application whenever there is a change to the source code. Which approaches could be used to trigger the deployment? (Choose two.)

A nightly batch job loads 1 million new records into a DynamoDB table. The records are only needed for one hour, and the table needs to be empty by the next night's batch job. Which is the MOST efficient and cost-effective method to provide an empty table?

A developer is troubleshooting the permissions of an application that needs to make changes to an Amazon RDS database. The developer has access to the IAM role that the application is using. Which command structure should the developer use to test the role permissions?

A Developer is creating a serverless website with content that includes HTML files, images, videos, and JavaScript (client-side scripts). Which combination of services should the Developer use to create the website?

The development team is working on an API that will be served from Amazon API gateway. The API will be served from three environments: development, test, and production. The API Gateway is configured to use 237 GB of cache in all three stages. Which is the MOST cost-efficient deployment strategy?

A company uses Amazon DynamoDB for managing and tracking orders. The DynamoDB table is partitioned based on the order date. The company receives a huge increase in orders during a sales event, causing DynamoDB writes to throttle, and the consumed throughput is far below the provisioned throughput. According to AWS best practices, how can this issue be resolved with MINIMAL costs?

A Developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API. When a call fails, no data is retrieved. What best practice should first be applied to address this issue?

A company is developing an application that will run on several Amazon EC2 instances in an Auto Scaling group and can access a database running on Amazon EC2. The application needs to store secrets required to connect to the database. The application must allow for periodic secret rotation, and there should be no changes to the application when a secret changes. What is the SAFEST way to meet these requirements?

An application development team decides to use AWS X-Ray to monitor application code to analyze performance and perform root cause analysis. What does the team need to do to begin using X-Ray? (Choose two.)

A developer is designing a distributed application built using a microservices architecture spanning multiple AWS accounts. The company's operations team wants to analyze and debug application issues from a centralized account. How can the developer meet these requirements?

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?

What does an Amazon SQS delay queue accomplish?

A Developer created a new AWS account and must create a scalable AWS Lambda function that meets the following requirements for concurrent execution: Average execution time of 100 seconds 50 requests per second Which step must be taken prior to deployment to prevent errors?

Which of the following platforms are supported by Elastic Beanstalk? (Choose two.)

A Developer has setup an Amazon Kinesis Stream with 4 shards to ingest a maximum of 2500 records per second. A Lambda function has been configured to process these records. In which order will these records be processed?

A Developer is leveraging a Border Gateway Protocol (BGP)-based AWS VPN connection to connect from on-premises to Amazon EC2 instances in the Developer's account. The Developer is able to access an EC2 instance in subnet A, but is unable to access an EC2 instance in subnet B in the same VPC. Which logs can the Developer use to verify whether the traffic is reaching subnet B?

A developer has created a REST API using Amazon API Gateway. The developer wants to log who and how each caller accesses the API. The developer also wants to control how long the logs are kept. What should the developer do to meet these requirements?

A developer is attempting to use the Amazon S3 PutObject API operation to upload an object to an S3 bucket that has default encryption enabled. The developer receives a 400 Bad Request error. What is the most likely cause of this error?

A Developer has developed a web application and wants to deploy it quickly on a Tomcat server on AWS. The Developer wants to avoid having to manage the underlying infrastructure. What is the easiest way to deploy the application, based on these requirements?

How should custom libraries be utilized in AWS Lambda?