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Questions › Category: DVA-C01
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A developer needs to secure the static assets in a company’s Amazon S3 bucket that is named DOC-EXAMPLE-BUCKET. The company has an Amazon CloudFront distribution that serves the S3 bucket’s assets to the public. The developer has already created the origin access identity (OAI) and has associated the OAI with the distribution. The developer must write a bucket policy that allows only the CloudFront distribution to access the S3 bucket….
Admin asked 9 months ago • 
15 views0 answers0 votes
A company set up a continuous build process that uses AWS CodeBuild and AWS CodeCommit. During the development phase, developers are frequently pushing code and causing significant build failures. The company wants a solution that will build code before the developers push the code to the main branch. Which solution meets these requirements MOST cost-effectively?
Admin asked 9 months ago • 
26 views0 answers0 votes
A developer has built an AWS Lambda function to update a legacy system. The developer has set the Lambda function’s trigger type to Amazon EventBridge. The legacy system was overwhelmed after the initial deployment of the Lambda function. The root cause was too many requests to the legacy system at the same time. The developer needs to limit the number of requests to the legacy system and must maintain high…
Admin asked 9 months ago • 
19 views0 answers0 votes
A developer is creating a photo website. Amazon Route 53 hosts the website’s domain. The developer wants to store the application code and images in an Amazon S3 bucket. The developer also wants to use Amazon CloudFront to deliver the images to users. The developer has created the S3 bucket and a CloudFront distribution. The developer wants the images to be accessed only through the website’s domain. Users must not…
Admin asked 9 months ago • 
16 views0 answers0 votes
A developer is building an application on Amazon EC2. The developer encountered an “Access Denied” error on some of the API calls to AWS services while testing. The developer needs to modify permissions that have been already given to the instance. How can these requirements be met with minimal changes and minimum downtime?
Admin asked 9 months ago • 
22 views0 answers0 votes
A company has a virtual reality (VR) game. The game has a serverless backend that consists of Amazon API Gateway, AWS Lambda, and Amazon DynamoDB. Recently, the company noticed a sudden increase of new users globally. The company also noticed delays in the retrieval of user data. Which AWS service or feature can the company use to reduce the database response time to microseconds?
Admin asked 9 months ago • 
21 views0 answers0 votes
A developer tests an application that a company developed by using AWS Lambda. The Lambda functions are behind an AmazonAPI Gateway API. The timeout for the API method is set to the same timeout as the Lambda functions. When a request is sent to the API, the responses are timing out. Which action would help the developer troubleshoot this issue?
Admin asked 9 months ago • 
18 views0 answers0 votes
A developer is creating a web application for a guitar store where customers can look for instruments in a catalog. The developer chooses Amazon DynamoDB in provisioned mode for the database. The database must contain a catalog for the instruments that are displayed in the application. The required information includes category (for example, acoustic guitar, electric guitar, bass guitar), part number, model, brand, country of fabrication, color, orientation (left-handed, right-handed),…
Admin asked 9 months ago • 
20 views0 answers0 votes
A security review for a software company’s application infrastructure shows that there is no test coverage in any of the company’s deployment pipelines. A developer must fix this issue as soon as possible. The company has been integrating the AWS Cloud Development Kit (AWS CDK) into the deployment process. However, much of the pipeline still uses AWS CloudFormation templates. The developer needs to add test coverage to all the deployment…
Admin asked 9 months ago • 
19 views0 answers0 votes
An ecommerce company is launching a new application that will be publicly accessible. The company deployed the application on Amazon EC2 instances behind an Application Load Balancer (ALB) in the us-east-1 Region. The EC2 instances are in an Auto Scaling group. A developer needs to make the application secure by using TLS/SSL certificates provisioned by AWS. The developer also needs to configure the existing domain www.example.com in Amazon Route 53….
Admin asked 9 months ago • 
21 views0 answers0 votes
A company is offering APIs as a service over the internet to provide unauthenticated read access to statistical information that is updated daily. The company uses Amazon API Gateway and AWS Lambda to develop the APIs. The service has become popular, and the company wants to enhance the responsiveness of the APIs. Which action can help the company achieve this goal?
Admin asked 9 months ago • 
20 views0 answers0 votes
An application development team decides to use AWS X-Ray to monitor application code to analyze performance and perform root cause analysis. What does the team need to do to begin using X-Ray? (Choose two.)
Admin asked 9 months ago • 
18 views0 answers0 votes
A developer manages an Amazon RDS for PostgreSQL database. An Amazon Elastic Container Service (Amazon ECS) container that uses AWS Fargate needs to modify the contents of the database during a nightly run. Which combination of steps should the developer take to provide database access to the container in the MOST secure manner? (Choose two.)
Admin asked 9 months ago • 
15 views0 answers0 votes
A developer is working on a serverless project. Initial testing shows that a cold start takes about 8 seconds on average for AWS Lambda functions. Which actions should the developer take to reduce the cold start time? (Choose two.)
Admin asked 9 months ago • 
26 views0 answers0 votes
A company runs an application on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group. The company has configured the Amazon CloudWatch agent to capture custom metrics within the instances. When the company launches new instances, the agent starts successfully, but it does not deliver any custom metrics to CloudWatch. Which action will deliver the custom metrics to CloudWatch?
Admin asked 9 months ago • 
21 views0 answers0 votes
A company deployed an application as a set of microservices that run on Amazon Elastic Container Service (Amazon ECS) behind an Application Load Balancer (ALB). The performance of the microservices has started to degrade for a specific set of user requests. The company needs to gain deeper insight into the request behavior that is associated with the performance degradation. Which process will meet this requirement?
Admin asked 9 months ago • 
17 views0 answers0 votes
A company’s mock data from development environments has been appearing in the production environment. The company wants a member of the Admin IAM user group to manually approve all promotions to production in the company’s AWS CodePipeline pipeline before the promotions can proceed. Which combination of steps will meet these requirements? (Choose two.)
Admin asked 9 months ago • 
19 views0 answers0 votes
A developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda function to process requests from clients. During testing, the developer notices that the API Gateway times out even though the Lambda function finishes under the set time limit. Which of the following API Gateway metrics in Amazon CloudWatch can help the developer troubleshoot the issue? (Choose two.)
Admin asked 9 months ago • 
28 views0 answers0 votes
A developer is implementing a serverless application by using AWS CloudFormation to provision Amazon S3 web hosting, Amazon API Gateway, and AWS Lambda functions. The Lambda function source code is zipped and uploaded to an S3 bucket. The S3 object key of the zipped source code is specified in the Lambda resource in the CloudFormation template. The developer notices that there are no changes in the Lambda function every time…
Admin asked 9 months ago • 
31 views0 answers0 votes
A developer is writing an application to encrypt files outside of AWS before uploading the files to an Amazon S3 bucket. The encryption must be symmetric and must be performed inside the application. How can the developer implement the encryption in the application to meet these requirements?
Admin asked 9 months ago • 
20 views0 answers0 votes
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