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Viewing page 7 out of 13 pages
Viewing questions 91-105 out of questions
Questions # 91:

A developer is building a microservices-based application by using Python on AWS and several AWS services The developer must use AWS X-Ray The developer views the service map by using the console to view the service dependencies. During testing, the developer notices that some services are missing from the service map

What can the developer do to ensure that all services appear in the X-Ray service map?

Options:

A.

Modify the X-Ray Python agent configuration in each service to increase the sampling rate

B.

Instrument the application by using the X-Ray SDK for Python. Install the X-Ray SDK for all the services that the application uses

C.

Enable X-Ray data aggregation in Amazon CloudWatch Logs for all the services that the application uses

D.

Increase the X-Ray service map timeout value in the X-Ray console

Questions # 92:

A developer is creating a serverless application that uses an AWS Lambda function The developer will use AWS CloudFormation to deploy the application The application will write logs to Amazon CloudWatch Logs The developer has created a log group in a CloudFormation template for the application to use The developer needs to modify the CloudFormation template to make the name of the log group available to the application at runtime

Which solution will meet this requirement?

Options:

A.

Use the AWS:lnclude transform in CloudFormation to provide the log group's name to the application

B.

Pass the log group's name to the application in the user data section of the CloudFormation template.

C.

Use the CloudFormation template's Mappings section to specify the log group's name for the application.

D.

Pass the log group's Amazon Resource Name (ARN) as an environment variable to the Lambda function

Questions # 93:

A developer is working on a web application that uses Amazon DynamoDB as its data store The application has two DynamoDB tables one table that is named artists and one table that is named songs The artists table has artistName as the partition key. The songs table has songName as the partition key and artistName as the sort key

The table usage patterns include the retrieval of multiple songs and artists in a single database operation from the webpage. The developer needs a way to retrieve this information with minimal network traffic and optimal application performance.

Which solution will meet these requirements'?

Options:

A.

Perform a BatchGetltem operation that returns items from the two tables. Use the list of songName artistName keys for the songs table and the list of artistName key for the artists table.

B.

Create a local secondary index (LSI) on the songs table that uses artistName as the partition key Perform a query operation for each artistName on the songs table that filters by the list of songName Perform a query operation for each artistName on the artists table

C.

Perform a BatchGetltem operation on the songs table that uses the songName/artistName keys. Perform a BatchGetltem operation on the artists table that uses artistName as the key.

D.

Perform a Scan operation on each table that filters by the list of songName/artistName for the songs table and the list of artistName in the artists table.

Questions # 94:

A company is planning to deploy an application on AWS behind an Elastic Load Balancing (ELB) load balancer. The application uses an HTTP/HTTPS listener and must access the client IP addresses.

Which load-balancing solution meets these requirements?

Options:

A.

Use an Application Load Balancer and the X-Forwarded-For headers.

B.

Use a Network Load Balancer (NLB). Enable proxy protocol support on the NLB and the target application.

C.

Use an Application Load Balancer. Register the targets by the instance ID.

D.

Use a Network Load Balancer and the X-Forwarded-For headers.

Questions # 95:

A developer needs to use a code template to create an automated deployment of an application onto Amazon EC2 instances. The template must be configured to repeat deployment, installation, and updates of resources for the application. The template must be able to create identical environments and roll back to previous versions.

Which solution will meet these requirements?

Options:

A.

Use AWS Amplify for automatic deployment templates. Use a traffic-splitting deployment to copy any deployments. Modify any resources created by Amplify, if necessary.

B.

Use AWS CodeBuild for automatic deployment. Upload the required AppSpec file template. Save the appspec.yml file in the root directory folder of the revision. Specify the deployment group that includes the EC2 instances for the deployment.

C.

Use AWS CloudFormation to create an infrastructure template in JSON format to deploy the EC2 instances. Use Cloud Formation helper scripts to install the necessary software and to start the application. Call the scripts directly from the template.

D.

Use AWS AppSync to deploy the application. Upload the template as a GraphQL schema. Specify the EC2 instances for deployment of the application. Use resolvers as a version control mechanism and to make any updates to the deployments.

Questions # 96:

A company is migrating an on-premises database to Amazon RDS for MySQL. The company has read-heavy workloads. The company wants to refactor the code to achieve optimum read performance for queries.

Which solution will meet this requirement with LEAST current and future effort?

Options:

A.

Use a multi-AZ Amazon RDS deployment. Increase the number of connections that the code makes to the database or increase the connection pool size if a connection pool is in use.

B.

Use a multi-AZ Amazon RDS deployment. Modify the code so that queries access the secondary RDS instance.

C.

Deploy Amazon RDS with one or more read replicas. Modify the application code so that queries use the URL for the read replicas.

D.

Use open source replication software to create a copy of the MySQL database on an Amazon EC2 instance. Modify the application code so that queries use the IP address of the EC2 instance.

Questions # 97:

A developer maintains a critical business application that uses Amazon DynamoDB as the primary data store The DynamoDB table contains millions of documents and receives 30-60 requests each minute The developer needs to perform processing in near-real time on the documents when they are added or updated in the DynamoDB table

How can the developer implement this feature with the LEAST amount of change to the existing application code?

Options:

A.

Set up a cron job on an Amazon EC2 instance Run a script every hour to query the table for changes and process the documents

B.

Enable a DynamoDB stream on the table Invoke an AWS Lambda function to process the documents.

C.

Update the application to send a PutEvents request to Amazon EventBridge. Create an EventBridge rule to invoke an AWS Lambda function to process the documents.

D.

Update the application to synchronously process the documents directly after the DynamoDB write

Questions # 98:

A company is creating an application that processes csv files from Amazon S3 A developer has created an S3 bucket The developer has also created an AWS Lambda function to process the csv files from the S3 bucket

Which combination of steps will invoke the Lambda function when a csv file is uploaded to Amazon S3? (Select TWO.)

Options:

A.

Create an Amazon EventBridge rule Configure the rule with a pattern to match the S3 object created event

B.

Schedule an Amazon EventBridge rule to run a new Lambda function to scan the S3 bucket.

C.

Add a trigger to the existing Lambda function. Set the trigger type to EventBridge Select the Amazon EventBridge rule.

D.

Create a new Lambda function to scan the S3 bucket for recently added S3 objects

E.

Add S3 Lifecycle rules to invoke the existing Lambda function

Questions # 99:

An application uses Lambda functions to extract metadata from files uploaded to an S3 bucket; the metadata is stored in Amazon DynamoDB. The application starts behaving unexpectedly, and the developer wants to examine the logs of the Lambda function code for errors.

Based on this system configuration, where would the developer find the logs?

Options:

A.

Amazon S3

B.

AWS CloudTrail

C.

Amazon CloudWatch

D.

Amazon DynamoDB

Questions # 100:

A company runs a web application on Amazon EC2 instances behind an Application Load Balancer. The application uses Amazon DynamoDB as its database. The company wants to ensure high performance for reads and writes.

Which solution will meet these requirements MOST cost-effectively?

Options:

A.

Configure auto-scaling for the DynamoDB table with a target utilization of 70%. Set the minimum and maximum capacity units based on the expected workload.

B.

Use DynamoDB on-demand capacity mode for the table. Specify a maximum throughput higher than the expected peak read and write capacity units.

C.

Use DynamoDB provisioned throughput mode for the table. Create an Amazon CloudWatch alarm on the ThrottledRequests metric. Invoke an AWS Lambda function to increase provisioned capacity.

D.

Create an Amazon DynamoDB Accelerator (DAX) cluster. Configure the application to use the DAX endpoint.

Questions # 101:

A developer maintains an Amazon API Gateway REST API. Customers use the API through a frontend UI and Amazon Cognito authentication.

The developer has a new version of the API that contains new endpoints and backward-incompatible interface changes. The developer needs to provide beta access to other developers on the team without affecting customers.

Which solution will meet these requirements with the LEAST operational overhead?

Options:

A.

Define a development stage on the API Gateway API. Instruct the other developers to point the endpoints to the development stage.

B.

Define a new API Gateway API that points to the new API application code. Instruct the other developers to point the endpoints to the new API.

C.

Implement a query parameter in the API application code that determines which code version to call.

D.

Specify new API Gateway endpoints for the API endpoints that the developer wants to add.

Questions # 102:

A developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.

How can session data be externalized, keeping latency at the LOWEST possible value?

Options:

A.

Create an Amazon RDS instance, then implement session handling at the application level to leverage a database inside the RDS database instance for session data storage.

B.

Implement a shared file system solution across the underlying Amazon EC2 instances, then implement session handling at the application level to leverage the shared file system for session data storage.

C.

Create an Amazon ElastiCache (Memcached) cluster, then implement session handling at the application level to leverage the cluster for session data storage.

D.

Create an Amazon DynamoDB table, then implement session handling at the application level to leverage the table for session data storage.

Questions # 103:

A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance types.

How can the developer incorporate the list of approved instance types in the CloudFormation template?

Options:

A.

Create a separate CloudFormation template for each EC2 instance type in the list.

B.

In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list.

C.

In the CloudFormation template, create a separate parameter for each EC2 instance type in the list.

D.

In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues.

Questions # 104:

A developer has observed an increase in bugs in the AWS Lambda functions that a development team has deployed in its Node is application. To minimize these bugs, the developer wants to impendent automated testing of Lambda functions in an environment that Closely simulates the Lambda environment.

The developer needs to give other developers the ability to run the tests locally. The developer also needs to integrate the tests into the team's continuous integration and continuous delivery (Ct/CO) pipeline before the AWS Cloud Development Kit (AWS COK) deployment.

Which solution will meet these requirements?

Options:

A.

Create sample events based on the Lambda documentation. Create automated test scripts that use the cdk local invoke command to invoke the Lambda functions. Check the response Document the test scripts for the other developers on the team Update the CI/CD pipeline to run the test scripts.

B.

Install a unit testing framework that reproduces the Lambda execution environment. Create sample events based on the Lambda Documentation Invoke the handler function by using a unit testing framework. Check the response Document how to run the unit testing framework for the other developers on the team. Update the OCD pipeline to run the unit testing framework.

C.

Install the AWS Serverless Application Model (AWS SAW) CLI tool Use the Sam local generate-event command to generate sample events for me automated tests. Create automated test scripts that use the Sam local invoke command to invoke the Lambda functions. Check the response Document the test scripts tor the other developers on the team Update the CI/CD pipeline to run the test scripts.

D.

Create sample events based on the Lambda documentation. Create a Docker container from the Node is base image to invoke the Lambda functions. Check the response Document how to run the Docker container for the more developers on the team update the CI/CD pipeline to run the Docker container.

Questions # 105:

A company has multiple Amazon VPC endpoints in the same VPC. A developer needs configure an Amazon S3 bucket policy so users can access an S3 bucket only by using these VPC endpoints.

Which solution will meet these requirements?

Options:

A.

Create multiple S3 bucket polices by using each VPC endpoint ID that have the aws SourceVpce value in the StringNotEquals condition.

B.

Create a single S3 bucket policy that has the aws SourceVpc value and in the StingNotEquals condition to use VPC ID.

C.

Create a single S3 bucket policy that the multiple aws SourceVpce value and in the SringNotEquals condton to use vpce.

D.

Create a single S3 bucket policy that has multiple aws sourceVpce value in the StingNotEquale condition. Repeat for all the VPC endpoint IDs.

Viewing page 7 out of 13 pages
Viewing questions 91-105 out of questions
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