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AWS DVA-C01 Exam Certification Details:

Duration	130 minutes
Schedule Exam	AWS Certification
Exam Name	AWS Developer Associate (AWS-CDA)
Recommended Training / Books	Developing on AWS

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Amazon DVA-C01 Exam Syllabus Topics:

Topic	Details
Topic 1	Familiarity with Architectural Trade-Off Decisions (High Availability vs. Cost, Amazon Relational
Topic 2	Shared Security Responsibility Model, AWS Platform Compliance, AWS Security Attributes (Customer Workloads Down to Physical Layer)
Topic 3	Amazon S3, Amazon Simple Workflow Service (SWS), and Messaging, DynamoDB, AWS Elastic Beanstalk, AWS CloudFormation
Topic 4	AWS Fundamentals Identify and Recognize Cloud Architecture Considerations, Such as Fundamental Components and Effective Designs
Topic 5	Demonstrate Ability to Implement the Right Architecture for Development, Testing, and Staging Environments
Topic 6	How to Design Cloud Services, Database Concepts, Planning and Design, Elasticity and Scalability
Topic 7	Deployment and Security Recognize and Implement Secure Procedures for Optimum Cloud Deployment and Maintenance, Cloud Security Best Practices
Topic 8	Database Service (RDS) vs. Installing Your Own Database on Amazon Elastic Compute Cloud (EC2))
Topic 9	Designing and Developing, Identify the Appropriate Techniques to Code a Cloud Solution, Configure an Amazon Machine Image (AMI), Programming with AWS APIs

Amazon AWS Certified Developer Associate Exam Sample Questions (Q557-Q562):

NEW QUESTION # 557
A company is developing a microservice that will manage customer account data in an Amazon DynamoDB table. Insert, update, and delete requests will be rare. Read traffic will be heavy. The company must have the ability to access customer data quickly by using a customer ID. The microservice can tolerate stale data.
Which solution will meet these requirements with the FEWEST possible read capacity units (RCUs)?

• A. Read the table by using transactional reads.
• B. Read the table by using strongly consistent reads.
• C. Read the table by using strongly consistent PartiQL queries.
• D. Read the table by using eventually consistent reads.

Answer: D Explanation:
Key points: "Read heavy", "access data quickly", "can tolerate stale data" To achieve: "FEWEST" possible (RCUs) For items up to 4 KB in size, one RCU can perform one strongly consistent read request per second.
For items up to 4 KB in size, one RCU can perform two eventually consistent read requests per second.
Transactional read requests require two RCUs to perform one read per second for items up to 4 KB.
For example,
a strongly consistent read of an 8 KB item would require two RCUs,
an eventually consistent read of an 8 KB item would require one RCU,
and a transactional read of an 8 KB item would require four RCUs.
https://aws.amazon.com/dynamodb/pricing/provisioned/
NEW QUESTION # 558
A developer created a web API that receives requests by using an internet-facing Application Load Balancer (ALB) with an HTTPS listener. The developer configures an Amazon Cognito user pool and wants to ensure that every request to the API is authenticated through Amazon Cognito.
What should the developer do to meet this requirement?

• A. Add a listener rule to the listener to return a fixed response if the Authorization header is missing. Set the fixed response to 401 Unauthorized.
• B. Create an Amazon API Gateway API. Configure all API methods to be forwarded to the ALB endpoint. Create an authorizer of the COGNITOUSERPOOLS type. Configure every API method to use that authorizer.
• C. Create an authentication action for the listener rules of the ALB. Set the rule action type to authenticate-cognito Set the OnUnauthenticatedRequest field to "deny."
• D. Create a new target group that includes an AWS Lambda function target that validates the Authorization header by using Amazon Cognito. Associate the target group with the listener.

Answer: B
NEW QUESTION # 559
A developer has written an Amazon Kinesis Data Streams application. As usage grows and traffic increases over time, the application is regularly receiving ProvisionedThroughputExceededException error messages
Which steps should the developer take to resolve the error? (Select TWO.)

• A. Implement exponential backoff on the GetRecords call and the PutRecords call.
• B. Increase the number of shards in the data stream
• C. Specify a shard iterator using the Shardlterator parameter.
• D. Use Auto Scaling to scale the stream for better performance
• E. Increase the delay between the GetRecords call and the PutRecords call.

Answer: B,C Explanation:
Reference:
https://docs.aws.amazon.com/streams/latest/dev/troubleshooting-consumers.html
NEW QUESTION # 560
A developer is provided with an HTTPS clone URL for an AWS CodeCommit repository.
What needs to be configured before cloning this repository?

• A. Set up the Git credential helper to use an AWS credential profile, and enable the helper to send the path to the repositories.
• B. Use AWS certificate manager to provision public and private SSL/TLS certificates.
• C. Generate encryption keys using AWS CloudHSM, then export the key for use with AWS CodeCommit.
• D. Use AWS KMS to set up public and private keys for use with CodeCommit.

Answer: C
NEW QUESTION # 561
A company runs its APIs using Amazon API Gateway in front of AWS Lambda functions The company wants to add logging at the API level Each API must have production and development environments The developer wants to enable different logging levels in both environments How can these requirements be met?

• A. Set up a stage for each environment In each stage, point to different Lambda functions that implement the logging logic m the code Access the logs in Amazon CloudWatch Logs
• B. Set up a stage for each environment In each stage, define a different logging level according to the logging requirements Access the logs in Amazon CloudWatch Logs
• C. Set up a stage for each environment In each stage, define a variable for the log level Set the value according to the logging requirements.
• D. Set up a stage and use the same Lambda functions In Amazon CloudWatch Logs set up a filter based on the log level according to the logging requirements

Answer: A
NEW QUESTION # 562
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