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You are writing to a DynamoDB table and receive the following exception:" ProvisionedThroughputExceededException". though according to your Cloudwatch metrics for the table, you are not exceeding your provisioned throughput. What could be an explanation for this?
A developer runs an application that uses an Amazon API Gateway REST API. The developer needs to implement a solution to proactively monitor the health of both API responses and latencies in case a deployment causes a service disruption despite passing deployment pipeline tests. The solution also must check for endpoint vulnerability and unauthorized changes to APIs. URLs, and website content. Which solution will meet these requirements?
During non-peak hours, a Developer wants to minimize the execution time of a full Amazon DynamoDB table scan without affecting normal workloads. The workloads average half of the strongly consistent read capacity units during non-peak hours. How would the Developer optimize this scan?
An application stores payroll information nightly in DynamoDB for a large number of employees across hundreds of offices. Item attributes consist of individual name, office identifier, and cumulative daily hours. Managers run reports for ranges of names working in their office. One query is. "Return all Items in this office for names starting with A through E". Which table configuration will result in the lowest impact on provisioned throughput for this query?
You are providing AWS consulting services for a company developing a new mobile application that will be leveraging Amazon SNS Mobile Push for push notifications. In order to send direct notification messages to individual devices each device registration identifier or token needs to be registered with SNS; however the developers are not sure of the best way to do this. You advise them to:
A company is migrating a web application from on premises to AWS. The company needs to move session storage from the application code to a shared service as part of the migration. The session storage data must be encrypted at rest. Which AWS services meet these requirements? (Choose two.)
A developer has written the following 1AM policy to provide access to an Amazon S3 bucket: Which access does the policy allow regarding the s3:GetObject and s3:PutObject actions'?
Which of the following are correct statements with policy evaluation logic in AWS Identity and Access Management? Choose 2 answers
An application under development is required to store hundreds of video files. The data must be encrypted within the application prior to storage, with a unique key for each video file. How should the Developer code the application?
Games-R-Us is launching a new game app for mobile devices. Users will log into the game using their existing Facebook account and the game will record player data and scoring information directly to a DynamoDB table. What is the most secure approach for signing requests to the DynamoDB API?

Question 331

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A developer is refactoring a monolithic application. The application takes a POST request and performs several operations. Some of the operations are in parallel while others run sequentially. These operations have been refactored into individual AWS Lambda functions. The POST request will be processed by Amazon API Gateway. How should the developer invoke the Lambda functions in the same sequence using API Gateway*?

A.
Use Amazon SQS to invoke the Lambda functions
A.
Use Amazon SQS to invoke the Lambda functions
Answers
B.
Use an AWS Step Functions activity to run the Lambda functions
B.
Use an AWS Step Functions activity to run the Lambda functions
Answers
C.
Use Amazon SNS to trigger the Lambda functions
C.
Use Amazon SNS to trigger the Lambda functions
Answers
D.
Use an AWS Step Functions state machine to orchestrate the Lambda functions.
D.
Use an AWS Step Functions state machine to orchestrate the Lambda functions.
Answers
Suggested answer: A

Question 332

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A company has a legacy application that was migrated to a fleet of Amazon EC2 instances. The application stores data in a MySQL database that is currently installed on a single EC2 instance The company has decided to migrate the database from the EC2 instance to MySQL on Amazon RDS.

What should the developer do to update the application to support data storage in Amazon RDS?

A.
Update the database connection parameters in the application to point to the new RDS instance
A.
Update the database connection parameters in the application to point to the new RDS instance
Answers
B.
Add a script to the EC2 instance that implements an AWS SDK for requesting database credentials.
B.
Add a script to the EC2 instance that implements an AWS SDK for requesting database credentials.
Answers
C.
Create a new EC2 instance with an IAM role that allows access to the new RDS database
C.
Create a new EC2 instance with an IAM role that allows access to the new RDS database
Answers
D.
Create an AWS Lambda function that will route traffic from the EC2 instance to the RDS database.
D.
Create an AWS Lambda function that will route traffic from the EC2 instance to the RDS database.
Answers
Suggested answer: A

Question 333

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A company is adding stored value for gift card) capability to its highly popular casual gaming website. Users need to be able to trade this value for other users' items on the platform. This would require both users' records be updated as a single transaction, or both users' records to be completely rolled back. Which AWS database options can provide the transactional capability required for this new feature?

(Select TWO )

A.
Amazon DynamoDB with operations made with the ConsistentRead parameter set to true
A.
Amazon DynamoDB with operations made with the ConsistentRead parameter set to true
Answers
B.
Amazon ElastiCache for Memcached with operations made within a transaction block
B.
Amazon ElastiCache for Memcached with operations made within a transaction block
Answers
C.
Amazon Aurora MySQL with operations made within a transaction block
C.
Amazon Aurora MySQL with operations made within a transaction block
Answers
D.
Amazon DynamoDB with reads and writes made using Transact" operations
D.
Amazon DynamoDB with reads and writes made using Transact" operations
Answers
E.
Amazon Redshift with operations made within a transaction block
E.
Amazon Redshift with operations made within a transaction block
Answers
Suggested answer: C, D

Question 334

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A developer is implementing authentication and authorization for an application. The developer needs to ensure that the user credentials are never exposed. Which approach should the developer take to meet this requirement?

A.
Store the user credentials In Amazon DynamoDB Build an AWS Lambda function to validate the credentials and authorize users
A.
Store the user credentials In Amazon DynamoDB Build an AWS Lambda function to validate the credentials and authorize users
Answers
B.
Deploy a custom authentication and authorization API on an Amazon EC2 instance. Store the user credentials in Amazon S3 and encrypt the credentials using Amazon S3 server-side encryption.
B.
Deploy a custom authentication and authorization API on an Amazon EC2 instance. Store the user credentials in Amazon S3 and encrypt the credentials using Amazon S3 server-side encryption.
Answers
C.
Use Amazon Cognito to configure a user pool, and use the Cognito API to authenticate and authorize the users.
C.
Use Amazon Cognito to configure a user pool, and use the Cognito API to authenticate and authorize the users.
Answers
D.
Store the user credentials In Amazon RDS Enable the encryption option for the Amazon RDS D8 instances Build an API using AWS Lambda to validate the credentials and authorize users
D.
Store the user credentials In Amazon RDS Enable the encryption option for the Amazon RDS D8 instances Build an API using AWS Lambda to validate the credentials and authorize users
Answers
Suggested answer: C

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A developer wants to ensure the Amazon EC2 instances in AWS Elastic Beanstalk execute a certain set of commands before the application is ready to use Which Elastic Beanstalk feature will allow the developer to accomplish this?

A.
Rolling update
A.
Rolling update
Answers
B.
Immutable update
B.
Immutable update
Answers
C.
User data
C.
User data
Answers
D.
ebextensions
D.
ebextensions
Answers
Suggested answer: D

Question 336

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A developer has written a serverless application and wants to deploy it to AWS Lambda to leverage the function's multi-threaded execution to improve performance. Which action should the developer take to achieve these requirements?

A.
increase the Lambda function execution timeout
A.
increase the Lambda function execution timeout
Answers
B.
Use unreserved account concurrency.
B.
Use unreserved account concurrency.
Answers
C.
Increase the memory allocation of the Lambda function
C.
Increase the memory allocation of the Lambda function
Answers
D.
Set the reserved concurrency of the Lambda function to a higher number
D.
Set the reserved concurrency of the Lambda function to a higher number
Answers
Suggested answer: C

Question 337

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A developer is migrating code to an AWS Lambda function that will access an Amazon Aurora MySQL database. What is the MOST secure way to authenticate the function to the database?

A.
Store the database credentials as encrypted parameters in AWS Systems Manager Parameter Store Obtain the credentials from Systems Manager when the Lambda function needs to connect to the database
A.
Store the database credentials as encrypted parameters in AWS Systems Manager Parameter Store Obtain the credentials from Systems Manager when the Lambda function needs to connect to the database
Answers
B.
Store the database credentials in AWS Secrets Manager Let Secrets Manager handle the rotation of the credentials, as required
B.
Store the database credentials in AWS Secrets Manager Let Secrets Manager handle the rotation of the credentials, as required
Answers
C.
Store the database credentials in an Amazon S3 bucket that has a restrictive bucket policy for the Lambda role only when accessing the credentials Use AWS KMS to encrypt the data
C.
Store the database credentials in an Amazon S3 bucket that has a restrictive bucket policy for the Lambda role only when accessing the credentials Use AWS KMS to encrypt the data
Answers
D.
Create a policy with rds-db connect access to the database and attach it to the role assigned to the Lambda function
D.
Create a policy with rds-db connect access to the database and attach it to the role assigned to the Lambda function
Answers
Suggested answer: B

Question 338

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A company has a two-tier application running on an Amazon EC2 server that handles all of its AWS based e-commerce activity During peak times, the backend servers that process orders are overloaded with requests. This results in some orders failing to process. A developer needs to create a solution that will re-factor the application. Which steps will allow for more flexibility during peak times, while still remaining cost-effective?

(Select TWO.)

A.
Increase the backend T2 EC2 instance sees to xl to handle the largest possible load throughout the year
A.
Increase the backend T2 EC2 instance sees to xl to handle the largest possible load throughout the year
Answers
B.
implement an Amazon SQS queue to decouple the front-end and backend servers
B.
implement an Amazon SQS queue to decouple the front-end and backend servers
Answers
C.
Use an Amazon SNS queue to decouple the front-end and backend servers.
C.
Use an Amazon SNS queue to decouple the front-end and backend servers.
Answers
D.
Migrate the backend servers to on-premises and pull from an Amazon SNS queue
D.
Migrate the backend servers to on-premises and pull from an Amazon SNS queue
Answers
E.
Modify the backend servers to pull from an Amazon SQS queue.
E.
Modify the backend servers to pull from an Amazon SQS queue.
Answers
Suggested answer: C, D

Question 339

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A developer is creating a new application that will be accessed by users through an API created using Amazon API Gateway The users need to be authenticated by a third-party Security Assertion Markup Language (SAML) identity provider Once authenticated, users will need access to other AWS services such as Amazon S3 and Amazon DynamoDB How can these requirements be met?

A.
Use an Amazon Cognito user pool with SAML as the resource server
A.
Use an Amazon Cognito user pool with SAML as the resource server
Answers
B.
Use Amazon Cognito Identity pools with a SAML identity provider as one of the authentication providers
B.
Use Amazon Cognito Identity pools with a SAML identity provider as one of the authentication providers
Answers
C.
Use the AWS IAM service to provide the sign-up and sign-in functionality.
C.
Use the AWS IAM service to provide the sign-up and sign-in functionality.
Answers
D.
Use Amazon CloudFront signed URLs to connect with the SAML identity provider
D.
Use Amazon CloudFront signed URLs to connect with the SAML identity provider
Answers
Suggested answer: B

Question 340

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A development team is creating a new application designed to run on AWS. While the test and production environments will run on Amazon EC2 instances, developers will each run their own environment on their laptops. Which of the following is the simplest and MOST secure way to access AWS services from the local development machines?

A.
Use an IAM role to assume a role and execute API calls using the role.
A.
Use an IAM role to assume a role and execute API calls using the role.
Answers
B.
Create an IAM user to be shared with the entire development team, provide the development team with the access key.
B.
Create an IAM user to be shared with the entire development team, provide the development team with the access key.
Answers
C.
Create an IAM user for each developer on the team: provide each developer with a unique access key
C.
Create an IAM user for each developer on the team: provide each developer with a unique access key
Answers
D.
Set up a federation through an Amazon Cognito user pool.
D.
Set up a federation through an Amazon Cognito user pool.
Answers
Suggested answer: A
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