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NEW QUESTION 39
A company has an AWS Lambda function that runs hourly, reads log files that are stored in Amazon S3, and forwards alerts to Amazon Simple Notification Service (Amazon SNS) topics based on content A developer wants to add a custom metric to the Lambda function to track the number of alerts of each type for each run The developer needs to log this information in Amazon CloudWatch in a metnc that is named Lambda/AlertCounts How should the developer modify the Lambda function to meet this requirement with the LEAST operational overhead1?

• A. Add a call to the PutMetncData API operation Pass an array for alerts and the number of occurrences in the Values and Counts fields with a namespace of "Lambda/AlertCounts"
• B. Add a print statement to standard out for each alert and the number of occurrences
• C. Add a call to the PutMetncAlarm API operation Pass an array of alerts in the metrics member with the namespace of "Lambda/AlertCounts"
• D. Add a call to the PutDashboard API operation Pass an array of alerts in the metrics member with the namespace of "Lambda/AlertCounts"

Answer: A

NEW QUESTION 40
A company is migrating the content delivery network for its dynamic PHP website to AWS An Amazon CloudFront web distribution is part of the new infrastructure The distribution has the following cache behavior settings
* Allowed HTTP Methods is set to GET HEAD
* Viewer Protocol Policy is set to HTTP and HTTPS
Developers test the solution and can reach the company's website over HTTP and HTTPS However the developers are unable to log in to the previously working administration panel of the website Which action will resolve this login issue?

• A. Set Viewer Protocol Policy to HTTPS Only
• B. Set Allowed HTTP Methods to GET HEAD, OPTIONS PUT. POST PATCH. DELETE
• C. Set Allowed HTTP Methods to GET, HEAD, OPTIONS
• D. Set Viewer Protocol Policy to Redirect HTTP to HTTPS.

Answer: D

NEW QUESTION 41
A developer wants to migrate a Windows .NET application that is running on IIS with a Microsoft SQL Server database to AWS. The developer does not want to think about provisioning and managing the infrastructure.
What should the developer do to migrate the application with the LEAST amount of effort?

• A. Migrate the database to Amazon DynamoDB Use Amazon API Gateway and AWS Lambda to create a web application interface that is hosted in an Amazon S3 bucket.
• B. Back up and restore the database to Amazon RDS. Use the .NET Migration Assistant for AWS Elastic Beanstalk to migrate the web application to a preconfigured solution stack that Elastic Beanstalk provides.
• C. Containerize the application on premises. Push the image to Amazon Elastic Container Registry (Amazon ECR). Create an AWS CloudFormation template to
• D. Launch Amazon EC2 instances for Windows Server. Back up and restore the database to Amazon RDS. Deploy the web application to the new EC2 instances

Answer: B

Explanation:
deploy the application

NEW QUESTION 42
A Developer has implemented a Lambda function that needs to add new customers to an RDS database that is expected to run hundreds of times per hour. The Lambda function is configured to use 512MB of RAM and is based on the following pseudo code:

After testing the Lambda function, the Developer notices that the Lambda execution time is much longer than expected. What should the Developer do to improve performance?

• A. Increase the amount of RAM allocated to the Lambda function, which will increase the number of threads the Lambda can use.
• B. Increase the size of the RDS database to allow for an increased number of database connections each hour.
• C. Move the database connection and close statement out of the handler. Place the connection in the global space.
• D. Replace RDS wit Amazon DynamoDB to implement control over the number of writes per second.

Answer: C

Explanation:
Explanation
Refer AWS documentation - Lambda Best Practices
Take advantage of Execution Context reuse to improve the performance of your function. Make sure any externalized configuration or dependencies that your code retrieves are stored and referenced locally after initial execution. Limit the re-initialization of variables/objects on every invocation. Instead use static initialization/constructor, global/static variables and singletons. Keep alive and reuse connections (HTTP, database, etc.) that were established during a previous invocation.

NEW QUESTION 43
A developer is working on a serverless application that needs lo process any changes to an Amazon DynamoDB table with an AWS Lambda function How should the developer configure the Lambda function to detect changes to the DynamoDB tabled

• A. Create an Amazon Kinesis Data Firehose delivery stream, and attach it to the DynamoDB table Configure the delivery stream destination as the Lambda function
• B. Enable DynamoDB Streams on the table Create a trigger to connect the DynamoDB stream to the Lambda function
• C. Create an Amazon Kinesis data stream, and attach it to the DynamoDB table Create a trigger to connect the data stream to the Lambda function
• D. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke the Lambda function on a regular schedule Connect to the DynamoDB table from the Lambda function to detect changes

Answer: B

NEW QUESTION 44
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