Amazon DVA-C01 Practice Test - Questions Answers, Page 24
List of questions
Question 231
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A Development team would like to migrate their existing application code from a GitHub repository to AWS CodeCommit. What needs to be created before they can migrate a cloned repository to CodeCommit over HTTPS?
Explanation:
https://docs.aws.amazon.com/codecommit/latest/userguide/how-to-migrate-repositoryexisting.html
Question 232
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A Developer must encrypt a 100-GB object using AWS KMS.
What is the BEST approach?
Explanation:
https://docs.aws.amazon.com/kms/latest/APIReference/API_GenerateDataKey.html
Question 233
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A team of Developers must migrate an application running inside an AWS Elastic Beanstalk environment from a Classic Load Balancer to an Application Load Balancer. Which steps should be taken to accomplish the task using the AWS Management Console?
Explanation:
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.elb.htmlBy default, Elastic Beanstalk creates an Application Load Balancer for your environment when you enable load balancing with the Elastic Beanstalk console or the EB CLI. It configures the load balance rto listen for HTTP traffic on port 80 and forward this traffic to instances on the same port. You can choose the type of load balancer that your environment uses only during environment creation.
Later, you can change settings to manage the behavior of your running environment's load balancer, but you can't change its type.
Question 234
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A Development team wants to instrument their code to provide more detailed information to AWS XQuestions & Answers PDF P-99 Ray than simple outgoing and incoming requests. This will generate large amounts of data, so the Development team wants to implement indexing so they can filter the data.
What should the Development team do to achieve this?
Explanation:
https://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-python-segment.html
https://docs.aws.amazon.com/xray/latest/devguide/xray-concepts.html#xray-concepts-annotations
Question 235
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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?
Explanation:
https://aws.amazon.com/about-aws/whats-new/2017/05/aws-lambda-raises-default-concurrentexecution-limit/
Question 236
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A company is using continuous integration and continuous delivery systems. A Developer now needs to automate a software package deployment to both Amazon EC2 instances and virtual servers running on-premises. Which AWS service should be used to accomplish this?
Question 237
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A company needs a version control system for collaborative software development. Features of the system must include the following:
Support for batches of changes across multiple files
Parallel branching
Version tracking
Which AWS service will meet these requirements?
Explanation:
https://docs.aws.amazon.com/codecommit/latest/userguide/welcome.html
Question 238
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A company runs an e-commerce website that uses Amazon DynamoDB where pricing for items is dynamically updated in real time. At any given time, multiple updates may occur simultaneously for pricing information on a particular product. This is causing the original editor’s changes to be overwritten without a proper review process.
Which DynamoDB write option should be selected to prevent this overwriting?
Explanation:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/WorkingWithItems.html#WorkingWithItems.ConditionalUpdate
Question 239
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An Amazon DynamoDB table uses a Global Secondary Index (GSI) to support read queries. The primary table is write-heavy, whereas the GSI is used for read operations. Looking at Amazon CloudWatch metrics, the Developer notices that write operations to the primary table are throttled frequently under heavy write activity. However, write capacity units to the primary table are available and not fully consumed. Why is the table being throttled?
Explanation:
https://stackoverflow.com/questions/39582752/do-global-secondary-index-gsi-in-dynamodbimpact-tables-provision-capacity https://medium.com/@synchrophoto/amazon-dynamodb-provisioning-write-capacity-for-globalsecondary-indexes-gsis-eaa4d4dce1df
Question 240
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A Developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.
How can session data be externalized, keeping latency at the LOWEST possible value?
Explanation:
https://aws.amazon.com/caching/session-management/
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