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Professionals who earn the AWS Certified Developer - Associate certification can expect to have a wide range of career opportunities available to them. AWS Certified Developer - Associate certification is recognized by organizations around the world as a standard of excellence in cloud computing and application development. It can help professionals to stand out in a crowded job market and demonstrate their commitment to staying up-to-date with the latest trends and technologies in the field.
Amazon DVA-C02 exam, also known as the AWS Certified Developer - Associate exam, is a certification exam offered by Amazon Web Services (AWS) for software developers who want to validate their skills and knowledge in developing applications on the AWS platform. DVA-C02 Exam is designed to test a candidate's ability to design, develop, and deploy cloud-based applications using AWS services and APIs. DVA-C02 exam covers a wide range of topics, including AWS core services, security, databases, and serverless architecture.
NEW QUESTION # 183
A developer created an AWS Lambda function that performs a series of operations that involve multiple AWS services. The function's duration time is higher than normal. To determine the cause of the issue, the developer must investigate traffic between the services without changing the function code Which solution will meet these requirements?
Answer: A
Explanation:
* Tracing Distributed Systems: AWS X-Ray is designed to trace requests across services, helping identify bottlenecks in distributed applications like this one.
* No Code Changes: Enabling X-Ray tracing often requires minimal code changes, meeting the requirement.
* Identifying Bottlenecks: Analyzing X-Ray traces and logs will reveal latency in communications between different AWS services, leading to the high duration time.
References:
* AWS X-Ray: https://aws.amazon.com/xray/
* X-Ray and Lambda: https://docs.aws.amazon.com/xray/latest/devguide/xray-services-lambda.html
NEW QUESTION # 184
A company is working on a new serverless application. A developer needs to find an automated way to deploy AWS Lambda functions and the dependent infrastructure with minimum coding effort. The application also needs to be reliable.
Which method will meet these requirements with the LEAST operational overhead?
Answer: C
NEW QUESTION # 185
A mobile app stores blog posts in an Amazon DynacnoDB table Millions of posts are added every day and each post represents a single item in the table. The mobile app requires only recent posts. Any post that is older than 48 hours can be removed.
What is the MOST cost-effective way to delete posts that are older man 48 hours?
Answer: A
Explanation:
Explanation
This solution will meet the requirements by using the Time to Live (TTL) feature of DynamoDB, which enables automatically deleting items from a table after a certain time period. The developer can add a new attribute of type Number that has a timestamp that is set to 48 hours after the blog post creation time, which represents the expiration time of the item. The developer can configure the DynamoDB table with a TTL that references the new attribute, which instructs DynamoDB to delete the item when the current time is greater than or equal to the expiration time. This solution is also cost-effective as it does not incur any additional charges for deleting expired items. Option A is not optimal because it will create a script to find and remove old posts with a table scan and a batch write item API operation, which may consume more read and write capacity units and incur more costs. Option B is not optimal because it will use Amazon Elastic Container Service (Amazon ECS) and AWS Fargate to run the script, which may introduce additional costs and complexity for managing and scaling containers. Option C is not optimal because it will create a global secondary index (GSI) that uses the expiration time as a sort key, which may consume more storage space and incur more costs.
References: Time To Live, Managing DynamoDB Time To Live (TTL)
NEW QUESTION # 186
A developer builds a serverless application on AWS by using Amazon API Gateway, AWS Lambda functions, and Amazon Route 53. During testing, the developer notices errors but cannot immediately locate the root cause.
To identify the errors, the developer needs to search all the application's logs.
What should the developer do to meet these requirements with the LEAST operational overhead?
Answer: B
Explanation:
https://docs.aws.amazon.com/lambda/latest/dg/monitoring-cloudwatchlogs.html
NEW QUESTION # 187
A company is building a scalable data management solution by using AWS services to improve the speed and agility of development. The solution will ingest large volumes of data from various sources and will process this data through multiple business rules and transformations.
The solution requires business rules to run in sequence and to handle reprocessing of data if errors occur when the business rules run. The company needs the solution to be scalable and to require the least possible maintenance.
Which AWS service should the company use to manage and automate the orchestration of the data flows to meet these requirements?
Answer: B
Explanation:
Explanation
https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html
NEW QUESTION # 188
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