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Amazon CLF-C01 Practice Test - Questions Answers, Page 60

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Which of the following is an AWS value proposition that describes a user's ability to scale infrastructure based on demand?
A company uses Amazon EC2 instances and wants to maintain high availability in geographically distributed locations Which choice should the company make for the location of its EC2 instances?
What does the AWS cloud provide to increase the speed and agility of execution for customers? (Select Two.)
Which tool or feature provides a report to forecast AWS billing costs for the next 3 months?
A company spends several months upgrading its on-premises infrastructure every few years The company wants to reduce infrastructure procurement time by migrating to the AWS Cloud. What is the main benefit of migrating to the AWS Cloud for this use case?
A user is comparing purchase options for an application that runs on Amazon EC2 and Amazon RDS. The application cannot sustain any interruption The application experiences a predictable amount of usage, including some seasonal spikes that last only a few weeks at a time It is not possible to modify the application. Which purchase option meets these requirements MOST cost-effectively?
A user wants to identify any security group that is allowing unrestricted incoming SSH traffic Which AWS service can be used to accomplish this goal?
Which of the following are customer responsibilities under the AWS shared responsibility model? (Select Two.)
A bank needs to store recordings of calls made to its contact center for 6 years. The recordings must be accessible within 48 hours from the time they are requested. Which AWS service will provide a secure and cost-effective solution for retaining these files?
Which AWS service is a highly available and scalable DNS web service?

Question 591

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A developer created a Lambda function for a web application backend When testing the Lambda function from the AWS Lambda console, the developer can see that the function is being run, but there is no log data being generated in Amazon CloudWatch Logs, even after several minutes. What could cause this situation?

A.
The Lambda function does not have any explicit log statements for the log data to send it to CloudWatch Logs
A.
The Lambda function does not have any explicit log statements for the log data to send it to CloudWatch Logs
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B.
The Lambda function is missing CloudWatch Logs as a source trigger to send log data
B.
The Lambda function is missing CloudWatch Logs as a source trigger to send log data
Answers
C.
The execution role for the Lambda function is missing permissions to write log data to the CloudWatch Logs
C.
The execution role for the Lambda function is missing permissions to write log data to the CloudWatch Logs
Answers
D.
The Lambda function is missing a target CloudWatch Log group
D.
The Lambda function is missing a target CloudWatch Log group
Answers
Suggested answer: C

Question 592

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A developer is making changes to a custom application that uses AWS Elastic Beanstalk.

Which solutions will update the Elastic Beanstalk environment with the new application version after the developer completes the changes? (Select TWO/)

A.
Package the application code into a zip file. Use the AWS Management Console to upload the .zip file and deploy the packaged application.
A.
Package the application code into a zip file. Use the AWS Management Console to upload the .zip file and deploy the packaged application.
Answers
B.
Package the application code into a tar file Use the AWS Management Console to create a new application version from the tar file. Update the environment by using the AWS CLI.
B.
Package the application code into a tar file Use the AWS Management Console to create a new application version from the tar file. Update the environment by using the AWS CLI.
Answers
C.
Package the application code into a tar file Use the AWS Management Console to upload the tar file and deploy the packaged application
C.
Package the application code into a tar file Use the AWS Management Console to upload the tar file and deploy the packaged application
Answers
D.
Package the application code into a zip file Use the AWS CLI to create a new application version from the zip file and to update the environment
D.
Package the application code into a zip file Use the AWS CLI to create a new application version from the zip file and to update the environment
Answers
E.
Package the application code into a zip file. Use the AWS Management Console to create a new application version from the .zip file. Rebuild the environment by using the AWS CLI.
E.
Package the application code into a zip file. Use the AWS Management Console to create a new application version from the .zip file. Rebuild the environment by using the AWS CLI.
Answers
Suggested answer: A, D

Question 593

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A developer manages an application that interacts with Amazon RDS. Alter observing slow performance with read queries, the developer Implements Amazon ElastiCache to update the cache immediately following the primary database update.

What will be the result of this approach to caching?

A.
Caching will increase the load on the database instance because the cache is updated for every database update.
A.
Caching will increase the load on the database instance because the cache is updated for every database update.
Answers
B.
Caching will slow performance of the read queries because the cache is updated when the cache cannot find the requested data
B.
Caching will slow performance of the read queries because the cache is updated when the cache cannot find the requested data
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C.
The cache will become large and expensive because the infrequently requested data is also written to the cache
C.
The cache will become large and expensive because the infrequently requested data is also written to the cache
Answers
D.
Overhead will be added to the initial response time because the cache is updated only after a cache miss
D.
Overhead will be added to the initial response time because the cache is updated only after a cache miss
Answers
Suggested answer: C

Question 594

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A developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB. In the local development environment the application has used 1AM access keys. The application is now ready for deployment onto an ECS cluster How should the application authenticate with AWS services in production?

A.
Configure an ECS task 1AM role for the application to use
A.
Configure an ECS task 1AM role for the application to use
Answers
B.
Refactor the application to call AWS STS AssumeRole based on an instance role
B.
Refactor the application to call AWS STS AssumeRole based on an instance role
Answers
C.
Configure AWS access key/secret access key environment variables with new credentials
C.
Configure AWS access key/secret access key environment variables with new credentials
Answers
D.
Configure the credentials file with a new access key/secret access key
D.
Configure the credentials file with a new access key/secret access key
Answers
Suggested answer: A

Question 595

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A company has dn application that analyzes photographs. A developer is preparing the application for deployment to Amazon EC2 instances. The application's image analysis functions require a mix of GPU instances and CPU instances that run on Amazon Linux. The developer needs to add code to the application so that the functions can determine whether they are running on a GPU instance What should the functions do to obtain this information?

A.
Call the Descnbeinstances API operation and filter on the current instance ID Examine the EiasticGpuAssociations property
A.
Call the Descnbeinstances API operation and filter on the current instance ID Examine the EiasticGpuAssociations property
Answers
B.
Evaluate the GPU_AVA1LABLE environment variable
B.
Evaluate the GPU_AVA1LABLE environment variable
Answers
C.
Call the DescribeElasticGpus API operation
C.
Call the DescribeElasticGpus API operation
Answers
D.
Retrieve the instance type from the instance metadata
D.
Retrieve the instance type from the instance metadata
Answers
Suggested answer: A

Question 596

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A developer is creating a serverless web application and maintains different branches of code. The developer wants to avoid updating the Amazon API Gateway target endpoint each time a new code push is performed What solution would allow the developer to perform a code push efficiently, without the need to update the API Gateway'^

A.
Associate different AWS Lambda functions to an API Gateway target endpoint
A.
Associate different AWS Lambda functions to an API Gateway target endpoint
Answers
B.
Create different stages in API Gateway then associate API Gateway with AWSLambda.
B.
Create different stages in API Gateway then associate API Gateway with AWSLambda.
Answers
C.
Create aliases and versions in AWS Lambda
C.
Create aliases and versions in AWS Lambda
Answers
D.
Tag the AWS Lambda functions with different names
D.
Tag the AWS Lambda functions with different names
Answers
Suggested answer: C

Question 597

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An application running on multiple Amazon EC2 instances pulls messages from a standard Amazon SQS queue. A requirement for the application is that all messages must be encrypted at rest Developers are instructed to use methods that allow tor centralized key management and minimize possible support requirements whenever possible. Which of the following solutions supports these requirements?

A.
Encrypt individual messages by using client-side encryption with customer managed keys, then write to the SQS queue
A.
Encrypt individual messages by using client-side encryption with customer managed keys, then write to the SQS queue
Answers
B.
Encrypt individual messages by using SQS Extended Client and the Amazon S3 encryption client
B.
Encrypt individual messages by using SQS Extended Client and the Amazon S3 encryption client
Answers
C.
Create an SQS queue and encrypt the queue by using server-side encryption with AWS KMS
C.
Create an SQS queue and encrypt the queue by using server-side encryption with AWS KMS
Answers
D.
Create an SQS queue, and encrypt the queue by using client-record encryption
D.
Create an SQS queue, and encrypt the queue by using client-record encryption
Answers
Suggested answer: C

Question 598

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An ecommerce company manages its application's infrastructure by using AWS Elastic Beanstalk. A developer wants to deploy the new version of the application with the least possible application downtime. The developer also must minimize the application's rollback time if there are issues with the deployment Which approach will meet these requirements?

A.
Use a rolling deployment to deploy the new version
A.
Use a rolling deployment to deploy the new version
Answers
B.
Use a rolling deployment with additional batches to deploy the new version
B.
Use a rolling deployment with additional batches to deploy the new version
Answers
C.
Use an all-at-once deployment to deploy the new version
C.
Use an all-at-once deployment to deploy the new version
Answers
D.
D.
Answers
Suggested answer: A, D

Explanation:

Explanation:

Question 599

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A developer is adding a feature to a client-side application so that users can upload videos to an Amazon S3 bucket. What is the MOST secure way to give the application the ability to write files to the S3 bucket?

A.
Update the S3 bucket policy to allow public write access. Allow any user to upload videos by removing the need to handle user authentication within the client-side application
A.
Update the S3 bucket policy to allow public write access. Allow any user to upload videos by removing the need to handle user authentication within the client-side application
Answers
B.
Create a new IAM policy and a corresponding 1AM user with permissions to write to the S3 bucket Store the key and the secret for the user in the application code Use the key to authenticate the video uploads
B.
Create a new IAM policy and a corresponding 1AM user with permissions to write to the S3 bucket Store the key and the secret for the user in the application code Use the key to authenticate the video uploads
Answers
C.
Configure the API layer of the application to have a new endpoint that creates signed URLs that allow an object to be put into the S3 bucket Generate a presigned URL through this API call in the client application. Upload the video byusing the signed URL
C.
Configure the API layer of the application to have a new endpoint that creates signed URLs that allow an object to be put into the S3 bucket Generate a presigned URL through this API call in the client application. Upload the video byusing the signed URL
Answers
D.
Generate a new 1AM key and a corresponding secret by using the AWS account root user credentials Store the key and the secret for the user in the application code. Use the key to authenticate the video uploads
D.
Generate a new 1AM key and a corresponding secret by using the AWS account root user credentials Store the key and the secret for the user in the application code. Use the key to authenticate the video uploads
Answers
Suggested answer: B

Question 600

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A development team is building a new application that will run on Amazon EC2 and use Amazon DynamoDB as a storage layer. The developers all have assigned IAM user accounts in the same IAM group The developers currently can launch EC2 instances, and they need to be able to launch EC2 instances with an instance role allowing access to Amazon DynamoDB Which AWS 1AM changes are needed when creating an instance role to provide this functionality?

A.
Create an iam permission policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows DynamoDB to assume the role Attach a permissions policy to the development group in AWS IAM that allowsdevelopers to use the lamGetRole and lamPassRole permissions for the role
A.
Create an iam permission policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows DynamoDB to assume the role Attach a permissions policy to the development group in AWS IAM that allowsdevelopers to use the lamGetRole and lamPassRole permissions for the role
Answers
B.
Create an IAM permissions policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows Amazon EC2 to assume the role. Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam PassRole permission for the role
B.
Create an IAM permissions policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows Amazon EC2 to assume the role. Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam PassRole permission for the role
Answers
C.
Create an IAM permission policy attached to the role that allows access to Amazon EC2. Add a trust policy to the role that allows DynamoDB to assume the role Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam PassRole permission for the role
C.
Create an IAM permission policy attached to the role that allows access to Amazon EC2. Add a trust policy to the role that allows DynamoDB to assume the role Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam PassRole permission for the role
Answers
D.
Create an IAM permissions policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows Amazon EC2 to assume the role Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam GetRole permission for the role
D.
Create an IAM permissions policy attached to the role that allows access to DynamoDB Add a trust policy to the role that allows Amazon EC2 to assume the role Attach a permissions policy to the development group in AWS IAM thatallows developers to use the iam GetRole permission for the role
Answers
Suggested answer: B
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