DVA-C02 - AWS Certified Developer - Associate High Hit-Rate Reliable Exam Guide

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Amazon DVA-C02 Exam is a valuable certification for developers who want to demonstrate their expertise in AWS development. It validates the candidate's ability to design, develop, and deploy cloud-based applications using AWS services and tools. To pass the exam, candidates should have a good understanding of AWS core services, be proficient in at least one programming language, and have experience working with AWS SDKs and APIs.

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Amazon DVA-C02 exam consists of 65 multiple-choice and multiple-response questions that must be completed within 130 minutes. DVA-C02 exam fee is $150, and it can be taken online or at a testing center. Candidates who successfully pass the exam will receive the AWS Certified Developer - Associate certification, which is valid for three years. They will also be listed in the AWS Certified Developer - Associate directory and have access to exclusive AWS certification events and resources.

The DVA-C02 Exam is designed for developers who have a minimum of one year of experience in developing and maintaining AWS-based applications. Candidates should have a good understanding of at least one programming language, such as Python, Java, or C#. They should also have experience in using AWS services, such as AWS Elastic Beanstalk, AWS CloudFormation, AWS CodeCommit, AWS CodePipeline, and AWS CodeBuild.

Amazon AWS Certified Developer - Associate Sample Questions (Q759-Q764):

NEW QUESTION # 759
A developer is creating a stock trading application. The developer needs a solution to send text messages to application users to confirmation when a trade has been completed.
The solution must deliver messages in the order a user makes stock trades. The solution must not send duplicate messages.
Which solution will meet these requirements?

A. Create an Amazon Simple Queue Service (Amazon SQS) FIFO queue. Use the SendMessageln API call to send the trade confirmation messages to the queue. Use the SendMessageOut API to send the messages to users by using the information provided in the trade confirmation message.
B. Create an Amazon Simple Notification Service (SNS) FIFO topic. Configure the application to use the AWS SDK to publish notifications to the SNS topic to send SMS messages to the users.
C. Configure a pipe in Amazon EventBridge Pipes. Connect the application to the pipe as a source.
Configure the pipe to use each user's mobile phone number as a target. Configure the pipe to send incoming events to the users.
D. Configure the application to publish messages to an Amazon Data Firehose delivery stream. Configure the delivery stream to have a destination of each user's mobile phone number that is passed in the trade confirmation message.

Answer: C

NEW QUESTION # 760
A developer is trying get data from an Amazon DynamoDB table called demoman-table. The developer configured the AWS CLI to use a specific IAM use's credentials and ran the following command.

The command returned errors and no rows were returned.
What is the MOST likely cause of these issues?

A. Amazon DynamoOB cannot be accessed from the AWS CLI and needs to called via the REST API
B. The command is incorrect; it should be rewritten to use put-item with a string argument
C. The developer needs to log a ticket with AWS Support to enable access to the demoman-table
D. The IAM user needs an associated policy with read access to demoman-table

Answer: D

Explanation:
Explanation
This solution will most likely solve the issues because it will grant the IAM user the necessary permission to access the DynamoDB table using the AWS CLI command. The error message indicates that the IAM user does not have sufficient access rights to perform the scan operation on the table. Option A is not optimal because it will change the command to use put-item instead of scan, which will not achieve the desired result of getting data from the table. Option B is not optimal because it will involve contacting AWS Support, which may not be necessary or efficient for this issue. Option C is not optimal because it will state that DynamoDB cannot be accessed from the AWS CLI, which is incorrect as DynamoDB supports AWS CLI commands.
References: AWS CLI for DynamoDB, [IAM Policies for DynamoDB]

NEW QUESTION # 761
A developer is troubleshooting an application mat uses Amazon DynamoDB in the uswest-2 Region. The application is deployed to an Amazon EC2 instance. The application requires read-only permissions to a table that is named Cars The EC2 instance has an attached IAM role that contains the following IAM policy.

When the application tries to read from the Cars table, an Access Denied error occurs.
How can the developer resolve this error?

A. Modify the IAM policy resource to be "arn aws dynamo* us-west-2 account-id table/*"
B. Create a trust policy that specifies the EC2 service principal. Associate the role with the policy.
C. Create a trust relationship between the role and dynamodb Amazonas com.
D. Modify the IAM policy to include the dynamodb * action

Answer: B

Explanation:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/access-control-overview.html#access- control-resource-ownership

NEW QUESTION # 762
A developer is writing a web application that must share secure documents with end users. The documents are stored in a private Amazon S3 bucket. The application must allow only authenticated users to download specific documents when requested, and only for a duration of 15 minutes.
How can the developer meet these requirements?

A. Create a presigned S3 URL using the AWS SDK with an expiration time of 15 minutes.
B. Copy the documents to a separate S3 bucket that has a lifecycle policy for deletion after 15 minutes.
C. Use server-side encryption with AWS KMS managed keys (SSE-KMS) and download the documents using HTTPS.
D. Modify the S3 bucket policy to only allow specific users to download the documents. Revert the change after 15 minutes.

Answer: A

NEW QUESTION # 763
A developer is creating an AWS Lambda function that searches for items from an Amazon DynamoDB table that contains customer contact information. The DynamoDB table items have the customer's email_address as the partition key and additional properties such as customer_type, name and job_title.
The Lambda function runs whenever a user types a new character into the customer_type text input. The developer wants the search to return partial matches of all the email_address property of a particular customer_type. The developer does not want to recreate the DynamoDB table.
What should the developer do to meet these requirements?

A. Add a local secondary index (LSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key. Perform a query operation on the LSI by using the begins_with key condition expression with the email_address property.
B. Add a local secondary index (LSI) to the DynamoDB table with job_title as the partition key and email_address as the sort key. Perform a query operation on the LSI by using the begins_with key condition expression with the email_address property.
C. Add a global secondary index (GSI) to the DynamoDB table with email_address as the partition key and customer_type as the sort key. Perform a query operation on the GSI by using the begins_with key condition expression with the email_address property.
D. Add a global secondary index (GSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key. Perform a query operation on the GSI by using the begins_with key condition expression with the email_address property.

Answer: D

Explanation:
By adding a global secondary index (GSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key, the developer can perform a query operation on the GSI using the Begins_with key condition expression with the email_address property. This will return partial matches of all email_address properties of a specific customer_type.

NEW QUESTION # 764
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