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Amazon DVA-C02 (AWS Certified Developer - Associate) Exam is a certification exam designed for individuals who want to validate their skills and knowledge in developing and deploying applications on the Amazon Web Services (AWS) platform. AWS is a cloud-based platform that offers a wide range of services such as computing power, storage, and databases, among others. The Amazon DVA-C02 exam tests an individual's ability to design, develop, and deploy cloud-based applications using AWS services.
To become a certified AWS Developer Associate, candidates must pass the DVA-C02 Exam, which consists of 65 multiple-choice and multiple-response questions. DVA-C02 exam is timed at 130 minutes, and candidates must score at least 720 out of 1000 to pass. AWS Certified Developer - Associate certification is valid for two years, and candidates are required to recertify to maintain their status. AWS Certified Developer - Associate certification is recognized globally and is highly valued by employers, making it a valuable asset for developers looking to enhance their career prospects in the cloud computing industry.
Amazon AWS Certified Developer - Associate Sample Questions (Q358-Q363):
NEW QUESTION # 358
A developer at a company needs to create a small application that makes the same API call once each day at a designated time. The company does not have infrastructure in the AWS Cloud yet, but the company wants to implement this functionality on AWS.
Which solution meets these requirements in the MOST operationally efficient manner?
Answer: C
Explanation:
The correct answer is C. Use an AWS Lambda function that is invoked by an Amazon EventBridge scheduled event.
C: Use an AWS Lambda function that is invoked by an Amazon EventBridge scheduled event. This is correct.
AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers.
Lambda runs your code on a high-availability compute infrastructure and performs all of the administration of thecompute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, and logging1.Amazon EventBridge is a serverlessevent bus service that enables you to connect your applications with data from a variety of sources2.EventBridge can create rules that run on a schedule, either at regular intervals or at specific times and dates, and invoke targets such as Lambdafunctions3. This solution meets the requirements of creating a small application that makes the same API call once each day at a designated time, without requiring any infrastructure in the AWS Cloud or any operational overhead.
A: Use a Kubernetes cron job that runs on Amazon Elastic Kubernetes Service (Amazon EKS). This is incorrect.Amazon EKS is a fully managed Kubernetes service that allows you to run containerized applications on AWS4.Kubernetes cron jobs are tasks that run periodically on a given schedule5. This solution could meet the functional requirements of creating a small application that makes the same API call once each day at a designated time, but it would not be the most operationally efficient manner. The company would need to provision and manage an EKS cluster, which would incur additional costs and complexity.
B: Use an Amazon Linux crontab scheduled job that runs on Amazon EC2. This is incorrect.Amazon EC2 is a web service that provides secure, resizable compute capacity in the cloud6.Crontab is a Linux utility that allows you to schedule commands orscripts to run automatically at a specified time or date7. This solution could meet the functional requirements of creating a small application that makes the same API call once each day at a designated time, but it would not be the most operationally efficient manner. The company would need to provision and manage an EC2 instance, which would incur additional costs and complexity.
D: Use an AWS Batch job that is submitted to an AWS Batch job queue. This is incorrect.AWS Batch enables you to run batch computing workloads on the AWS Cloud8.Batch jobs are units of work that can be submitted to job queues, where they are executed in parallel or sequentially on compute environments9. This solution could meet the functional requirements of creating a small application that makes the same API call once each day at a designated time, but it would not be the most operationally efficient manner. The company would need to configure and manage an AWS Batch environment, which would incur additional costs and complexity.
NEW QUESTION # 359
A developer is building a serverless application that connects to an Amazon Aurora PostgreSQL database. The serverless application consists of hundreds of AWS Lambda functions. During every Lambda function scale out, a new database connection is made that increases database resource consumption.
The developer needs to decrease the number of connections made to the database. The solution must not impact the scalability of the Lambda functions.
Which solution will meet these requirements?
Answer: B
Explanation:
Amazon RDS Proxy is a solution that allows you to create a connection pool to manage database connections. This can help reduce the number of connections made to the database.
NEW QUESTION # 360
A developer is creating an Amazon DynamoDB table by using the AWS CLI The DynamoDB table must use server-side encryption with an AWS owned encryption key How should the developer create the DynamoDB table to meet these requirements?
Answer: A
Explanation:
Default SSE in DynamoDB: DynamoDB tables are encrypted at rest by default using an AWS owned key (SSE-S3).
No Additional Action Needed: Creating a table without explicitly specifying a KMS key will use this default encryption.
Reference:
DynamoDB Server-Side Encryption: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Encryption
NEW QUESTION # 361
A developer is using an AWS Lambda function to generate avatars for profile pictures that are uploaded to an Amazon S3 bucket. The Lambda function is automatically invoked for profile pictures that are saved under the /original/ S3 prefix. The developer notices that some pictures cause the Lambda function to time out. The developer wants to implement a fallback mechanism by using another Lambda function that resizes the profile picture.
Which solution will meet these requirements with the LEAST development effort?
Answer: D
Explanation:
Explanation
The solution that will meet the requirements with the least development effort is to set the image resize Lambda function as a destination of the avatar generator Lambda function for the events that fail processing.
This way, the fallback mechanism is automatically triggered by the Lambda service without requiring any additional components or configuration. The other options involve creating and managing additional resources such as queues, topics, state machines, or rules, which would increase the complexity and cost of the solution.
NEW QUESTION # 362
A company uses AWS Lambda functions and an Amazon S3 trigger to process images into an S3 bucket. A development team set up multiple environments in a single AWS account.
After a recent production deployment, the development team observed that the development S3 buckets invoked the production environment Lambda functions. These invocations caused unwanted execution of development S3 files by using production Lambda functions. The development team must prevent these invocations. The team must follow security best practices.
Which solution will meet these requirements?
Answer: D
NEW QUESTION # 363
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